Background

Row

NCAM

NCAM: A state-space stock assessment model for Northern cod

General

  • An integrated state-space population dynamics model
  • Integrated
    • Uses as much information as possible
  • State-space
    • Includes process and observation equations + error
    • Population processes are informed by observations from multiple sources
    • Process errors are necessary for realistic stochastic projections

Data inputs

  • Reported landings (1983-2017)
  • Catch-at-age information (1983-2017)
  • Reported landings by month (1983-2017)
  • Offshore research vessel (RV) survey indices (1983-2017)
  • Inshore sentinel (SN) gillnet survey indices (1995-2017)
  • Inshore acoustic biomass surveys and age composition data from Smith Sound (SS; 1995-2009)
  • Tagging data (1983-2017)

Biological inputs

  • RV survey data were used fit cohort-based models of:
  • Proportion mature at age
  • Beginning of year and mid-year stock weights at age
  • Baseline natural mortality (M) values

Partial catches

  • User sets lower and upper bounds on total catch weight
  • Bounds are used via a censored likelihood

Change in Q

  • A shift in Q was assumed for the offshore RV survey
  • A variable portion of the stock is assumed to occupy Smith Sound between 1995-2009
  • Q for the inshore sentinel survey was assumed to follow a random walk
    • Done to account for potential changes in migration patterns

Tagging data

  • Age of tagged fish estimated from length-at-release using a spatiotemporal Von Bertalanffy growth model
  • Applies adjustments for tagging mortality, tag loss and reporting rates
  • Reporting rates estimated by an external model using the high-reward tag data collected since 1997
  • The Baranov catch equation was applied to age-based tag survivors
  • Assumes that initial fishing mortality experienced by fish in each experiment are random deviations from the fishing mortality experienced by the whole stock

References

Cadigan, N. 2015. A state-space stock assessment model for Northern cod, including under-reported catches and variable natural mortality rates. Canadian Journal of Fisheries and Aquatic Sciences 73 (2). NRC Research Press: 296-308.

Cadigan, N. 2016. Updates to a Northern cod (Gadus morhua) state-space integrated assessment model. DFO Can. Sci. Advis. Sec. Res. Doc. 2016/022. v + 58 p.

Catch

Row

Landings

Y-axes in log scale

Row

Observed and predicted catch at age

Residuals by year, cohort, age and expected values

based on continuation ratio logits

Catch at age surface (proportion)

RV Survey

Row

RV survey index

Y-axes in log scale

Standardized log residuals

Row

RV survey index at age

Y-axes in log scale

Residuals by year, cohort, age and expected values

SN Survey

Row

Sentinel gillnet survey index

Y-axes in log scale

Standardized log residuals

Row

Sentinel gillnet survey index at age

Y-axes in log scale

Residuals by year, cohort, age and expected values

SS Survey

Row

Smith sound acoustic biomass estimates

Standardized log residuals

Row

Smith Sound trawl numbers at age

Residuals by year, cohort, age and expected values

Tagging

Row

Observed and predicted tag recaptures by experimemnt

Y-axis is in square root scale

Row

Tag reporting rate

Initial F deviations for tagging experiments

Observed vs. predicted recaptures

Axes are in square root scale

Standardized residuals vs. predicted recaptures

X-axis is in square root scale

Catchability

Row

Fishery selectivity

Row

RV survey catchability

Proportion of the stock in Smith Sound

Sentinel gillnet survey catchability

Retro

Row

Stock status

Row

Mortality Rates

Productivity

Row

Recruitment

SSB

RPS

SSB x Recruitment

SSB x RPS

log(SSB) x log(RPS)

Inputs

Row

Landings

Reported landings (t) of cod from NAFO Divs. 2J+3KL from 1959 onward
Year Landings
1959 359572
1960 467802
1961 505105
1962 507026
1963 509209
1964 602651
1965 545035
1966 524505
1967 611764
1968 810014
1969 753690
1970 520226
1971 439518
1972 458295
1973 354509
1974 372650
1975 287508
1976 214220
1977 172720
1978 138559
1979 166899
1980 175788
1981 170748
1982 229774
1983 232345
1984 232471
1985 231293
1986 266713
1987 239924
1988 268677
1989 253990
1990 219452
1991 172012
1992 40956
1993 11392
1994 1314
1995 413
1996 1875
1997 877
1998 4507
1999 8526
2000 5430
2001 6969
2002 4249
2003 994
2004 649
2005 1332
2006 2701
2007 2931
2008 3385
2009 3116
2010 2962
2011 3770
2012 3871
2013 4506
2014 4870
2015 4436
2016 10110
2017 13152

Catch at age

Catch numbers-at-age (thousands) for the commercial cod fishery in NAFO Divs. 2J+3KL.
2 3 4 5 6 7 8 9 10 11 12 13 14
1962 301 8666 26194 64337 58163 47314 27521 20142 18036 10444 9468 7778 5785
1963 1446 5746 27577 60234 118112 58996 29349 15520 11612 8248 4204 3942 2933
1964 2872 19338 27603 57757 60681 100147 50865 20892 12264 8698 6352 4989 4036
1965 85 5177 28709 46800 66946 64360 68176 33819 14913 6945 3729 3948 3730
1966 819 14057 65992 93687 62812 59312 30423 23844 8762 4528 2280 1825 1186
1967 790 15262 77873 100339 96759 54996 38691 17146 16084 5949 3367 2108 1529
1968 288 6142 94291 205805 150541 83808 39443 23171 10984 5591 5249 1939 1334
1969 59 4330 39626 100858 163228 107509 52661 19651 12370 6389 4479 3004 1557
1970 6819 18104 60102 82357 101249 85696 29218 10857 3825 2000 1200 507 224
1971 33 12876 71557 95384 98111 57865 25055 11732 4470 2223 1287 1140 720
1972 236 6737 79809 116562 76196 55984 29553 11750 6393 2987 1660 1388 725
1973 0 3963 40785 94844 59503 35464 27351 14153 7566 3815 2153 1173 450
1974 473 3231 13201 34927 74403 60539 35687 18854 10492 5818 2934 1078 652
1975 420 3968 14101 25370 34426 39105 36485 13421 7514 2315 1179 808 372
1976 15 13767 33727 28049 20898 16811 16022 10931 4637 1462 631 292 251
1977 108 7128 65510 40462 12107 5397 3396 2730 1381 532 296 149 75
1978 0 1323 17556 39206 20319 7711 3078 1530 1083 437 219 105 62
1979 0 1152 12361 37493 29202 10982 3460 1300 757 560 183 116 51
1980 92 2554 12025 28814 30016 18017 4830 1217 520 232 229 56 65
1981 0 2185 7172 13191 24800 22014 11848 3175 779 309 195 125 48
1982 0 1702 31286 19003 14397 25435 16930 11936 1923 338 156 90 153
1983 18 2585 13616 42602 19028 12044 14701 8934 6341 1018 248 90 41
1984 3 782 14871 31760 38624 12503 7246 8910 4227 2536 451 146 48
1985 0 650 14824 36614 33922 28006 7050 3836 5162 2905 1681 254 107
1986 1 831 15219 44168 45869 26025 14722 3104 2000 1977 1101 574 116
1987 42 2329 9217 32340 49061 28469 19505 5818 1346 676 873 391 200
1988 25 2779 14651 20184 47917 45725 18608 9026 4337 774 422 366 223
1989 8 1696 17639 21150 25212 38708 28499 8696 3640 1695 572 244 180
1990 58 7693 40557 36410 22695 16390 17940 9156 2865 1084 478 103 98
1991 35 3111 31654 53805 29553 9064 6164 4745 1696 641 250 88 39
1992 0 430 3860 14535 12211 4526 1372 376 199 104 18 9 4
1993 0 940 4993 3343 1940 700 147 21 0 0 0 0 0
1994 0 105 379 575 177 74 22 2 0 0 0 0 0
1995 0 12 41 93 76 25 10 2 0 0 0 0 0
1996 1 35 157 304 401 131 24 7 2 0 0 0 0
1997 0 12 39 92 95 148 35 5 2 0 0 0 0
1998 3 96 229 395 689 384 236 74 10 5 2 1 0
1999 7 70 238 638 795 1157 370 253 52 13 3 0 0
2000 5 141 258 419 437 328 294 151 136 33 5 3 1
2001 10 249 778 710 611 365 190 272 80 117 33 3 1
2002 6 166 296 399 335 235 124 77 113 50 52 10 2
2003 0 9 11 19 53 44 28 22 9 32 20 27 7
2004 1 10 24 33 47 59 32 14 7 3 5 2 2
2005 0 16 27 137 182 101 51 19 7 4 2 2 1
2006 0 12 159 307 381 168 79 30 13 5 2 1 2
2007 0 12 44 357 423 178 69 21 8 5 2 1 1
2008 0 11 84 172 649 422 147 37 12 6 2 1 1
2009 0 25 96 124 170 410 248 68 15 5 1 1 0
2010 3 18 72 122 202 200 329 143 34 6 1 1 0
2011 4 27 74 92 186 247 188 202 78 17 2 1 0
2012 3 38 63 165 248 271 228 117 131 43 7 1 0
2013 0 22 137 287 432 357 231 153 75 55 24 6 1
2014 8 36 42 232 438 461 211 115 69 34 38 12 1
2015 0 3 26 87 450 397 266 115 52 49 21 21 4
2016 0 3 48 259 520 1221 720 384 188 70 32 14 21
2017 0 1 34 224 836 706 1318 689 354 123 59 41 20

RV index

Mean number of cod per tow at age in the index strata for the autumn DFO RV bottom-trawl surveys of NAFO Divs. 2J+3KL.
2 3 4 5 6 7 8 9 10 11 12 13 14
1962 NA NA NA NA NA NA NA NA NA NA NA NA NA
1963 NA NA NA NA NA NA NA NA NA NA NA NA NA
1964 NA NA NA NA NA NA NA NA NA NA NA NA NA
1965 NA NA NA NA NA NA NA NA NA NA NA NA NA
1966 NA NA NA NA NA NA NA NA NA NA NA NA NA
1967 NA NA NA NA NA NA NA NA NA NA NA NA NA
1968 NA NA NA NA NA NA NA NA NA NA NA NA NA
1969 NA NA NA NA NA NA NA NA NA NA NA NA NA
1970 NA NA NA NA NA NA NA NA NA NA NA NA NA
1971 NA NA NA NA NA NA NA NA NA NA NA NA NA
1972 NA NA NA NA NA NA NA NA NA NA NA NA NA
1973 NA NA NA NA NA NA NA NA NA NA NA NA NA
1974 NA NA NA NA NA NA NA NA NA NA NA NA NA
1975 NA NA NA NA NA NA NA NA NA NA NA NA NA
1976 NA NA NA NA NA NA NA NA NA NA NA NA NA
1977 NA NA NA NA NA NA NA NA NA NA NA NA NA
1978 NA NA NA NA NA NA NA NA NA NA NA NA NA
1979 NA NA NA NA NA NA NA NA NA NA NA NA NA
1980 NA NA NA NA NA NA NA NA NA NA NA NA NA
1981 NA NA NA NA NA NA NA NA NA NA NA NA NA
1982 NA NA NA NA NA NA NA NA NA NA NA NA NA
1983 58.000 42.954 20.918 16.086 4.202 2.540 4.812 2.585 1.084 0.221 0.075 0.025 0.027
1984 56.924 47.820 33.362 16.569 10.657 2.369 1.255 2.015 1.103 0.424 0.191 0.040 0.027
1985 10.632 32.232 30.342 17.065 8.460 4.159 0.864 0.756 0.672 0.374 0.128 0.032 0.010
1986 14.801 20.783 63.369 57.562 29.380 11.526 5.087 1.246 0.505 0.601 0.354 0.104 0.047
1987 11.960 7.646 10.218 23.054 15.594 4.726 3.133 1.512 0.333 0.139 0.163 0.085 0.038
1988 18.859 13.237 7.677 10.338 13.925 10.209 2.446 1.342 0.675 0.137 0.087 0.072 0.042
1989 62.961 35.266 21.412 12.117 10.183 10.143 5.447 1.392 0.719 0.337 0.106 0.034 0.032
1990 15.555 47.277 28.508 12.951 7.104 4.136 5.278 2.398 0.716 0.329 0.143 0.037 0.026
1991 11.283 15.132 39.039 18.536 4.714 1.472 0.697 0.423 0.188 0.041 0.027 0.005 0.000
1992 2.514 5.118 3.441 5.911 2.103 0.372 0.043 0.018 0.011 0.002 0.008 0.000 0.000
1993 3.034 2.013 1.670 0.477 0.410 0.077 0.003 0.000 0.001 0.000 0.000 0.000 0.000
1994 0.467 0.694 0.342 0.101 0.028 0.020 0.009 0.000 0.000 0.000 0.000 0.000 0.000
1995 0.969 0.727 0.295 0.090 0.058 0.010 0.001 0.000 0.000 0.000 0.000 0.000 0.000
1996 1.392 0.855 0.393 0.150 0.047 0.032 0.003 0.003 0.000 0.000 0.000 0.000 0.000
1997 0.678 0.890 0.255 0.115 0.010 0.035 0.045 0.003 0.000 0.000 0.000 0.000 0.000
1998 0.393 0.614 0.488 0.159 0.043 0.024 0.022 0.009 0.000 0.003 0.000 0.000 0.000
1999 1.722 1.543 0.507 0.232 0.044 0.011 0.008 0.013 0.007 0.003 0.003 0.000 0.000
2000 1.608 1.529 0.974 0.209 0.072 0.015 0.008 0.004 0.000 0.000 0.000 0.000 0.000
2001 1.535 1.776 0.691 0.316 0.053 0.013 0.010 0.013 0.000 0.024 0.007 0.000 0.000
2002 2.271 1.063 0.628 0.150 0.030 0.006 0.000 0.000 0.000 0.000 0.003 0.003 0.003
2003 0.544 0.630 0.251 0.073 0.019 0.004 0.000 0.004 0.000 0.003 0.000 0.003 0.003
2004 2.829 0.594 0.388 0.120 0.036 0.004 0.007 0.004 0.007 0.000 0.000 0.000 0.000
2005 1.012 2.018 0.764 0.212 0.036 0.003 0.004 0.000 0.000 0.000 0.000 0.000 0.000
2006 1.178 1.435 1.874 1.240 0.312 0.029 0.036 0.010 0.007 0.000 0.004 0.000 0.000
2007 2.272 1.884 1.350 1.786 0.714 0.173 0.037 0.014 0.011 0.000 0.004 0.000 0.000
2008 2.091 2.850 1.918 1.144 1.447 0.618 0.124 0.086 0.000 0.012 0.011 0.004 0.000
2009 2.590 4.379 3.748 1.815 0.606 0.548 0.135 0.026 0.005 0.004 0.004 0.000 0.000
2010 1.803 2.832 2.154 1.255 0.827 0.436 0.360 0.151 0.036 0.014 0.000 0.000 0.000
2011 2.559 2.233 1.395 0.794 0.660 0.393 0.255 0.253 0.088 0.014 0.000 0.000 0.000
2012 1.383 3.773 2.972 1.517 0.701 0.533 0.328 0.194 0.218 0.075 0.012 0.000 0.000
2013 5.949 2.748 4.014 2.860 1.697 0.918 0.541 0.223 0.208 0.157 0.072 0.012 0.000
2014 11.846 8.697 3.630 4.137 1.977 0.893 0.457 0.234 0.108 0.039 0.110 0.020 0.000
2015 8.395 11.372 8.402 3.722 3.657 1.453 0.736 0.364 0.141 0.117 0.053 0.039 0.021
2016 5.899 11.409 9.650 5.423 2.084 2.157 1.355 0.576 0.293 0.123 0.086 0.054 0.049
2017 6.849 6.593 7.850 6.419 3.024 0.942 0.774 0.253 0.107 0.061 0.030 0.011 0.008

SN index

Standardized age-disaggregated sentinel gill-net (5 1/2" mesh) catch rates (fish / net) of cod in NAFO Divs. 2J+3KL.
3 4 5 6 7 8 9 10
1995 0.002 0.046 1.049 1.368 0.561 0.319 0.079 0.017
1996 0.033 0.132 0.890 4.928 2.056 0.597 0.132 0.035
1997 0.018 0.084 1.382 2.077 3.732 0.926 0.121 0.051
1998 0.033 0.082 1.072 5.258 3.398 1.862 0.520 0.070
1999 0.013 0.094 1.118 1.939 2.657 0.775 0.420 0.103
2000 0.016 0.068 0.687 1.136 0.792 0.978 0.436 0.207
2001 0.010 0.056 0.302 0.757 0.465 0.227 0.334 0.098
2002 0.020 0.056 0.408 0.575 0.482 0.204 0.110 0.138
2003 0.029 0.073 0.328 1.288 0.788 0.293 0.131 0.052
2004 0.012 0.118 0.714 1.233 1.290 0.402 0.140 0.041
2005 0.024 0.070 1.364 2.041 1.089 0.522 0.189 0.053
2006 0.013 0.310 1.062 2.514 1.223 0.416 0.195 0.068
2007 0.026 0.063 2.069 2.903 1.387 0.447 0.137 0.066
2008 0.019 0.074 0.422 4.333 2.724 0.815 0.219 0.062
2009 0.019 0.049 0.295 0.870 2.837 1.748 0.427 0.104
2010 0.010 0.024 0.249 1.303 1.251 2.190 1.023 0.241
2011 0.013 0.046 0.282 1.016 1.796 1.274 1.424 0.576
2012 0.028 0.083 1.081 2.167 2.382 1.630 0.893 0.942
2013 0.008 0.073 0.938 3.591 2.525 1.886 1.056 0.583
2014 0.026 0.101 2.004 4.478 4.438 1.796 1.011 0.429
2015 0.014 0.071 0.786 4.898 4.558 2.204 0.861 0.419
2016 0.002 0.030 0.341 1.495 4.057 2.462 1.273 0.639
2017 0.000 0.021 0.221 1.434 2.208 3.373 1.586 0.767

SS index

Acoustic biomass estimates (t) for Smith Sound, Trinity Bay, from Rose et al. (2011).
Year Month Biomass SE2
1995 5.5 11000 4000
1997 6.0 14800 4500
1998 6.0 15000 4500
1999 1.0 15000 5000
2000 1.0 17558 7000
2001 1.0 25363 8800
2002 1.0 22733 6800
2003 1.0 19628 2720
2004 1.0 17800 2000
2006 1.0 17322 1273
2007 2.0 14024 3222
2008 2.0 7147 1053
2009 4.0 600 350

SS age composition

Age composition of cod sampled during acoustic surveys in Smith Sound during 1995-2003. For details see Rose et al. 2011.
1995 1998 1999 2000 2001 2002 2003
0 0 3 2 5 0 0
0 6 22 10 19 5 2
0 15 17 153 38 18 20
8 13 144 366 93 68 152
69 42 92 251 80 198 121
49 168 99 137 79 70 105
17 66 194 100 46 53 37
5 236 63 259 37 25 13
2 63 127 92 66 25 5
0 2 34 153 23 59 1
0 2 5 32 38 11 10
0 0 8 8 8 42 3
0 0 0 0 0 4 10
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0

Weight at age

Beginning of year weight-at-age estimates (kg) from a generalized Von Bertalanffy (VonB2) growth model described in Cadigan (2016) fitted by cohort to average weight at age data for cod from autumn bottom-trawl surveys in Division 2J+3KL.
2 3 4 5 6 7 8 9 10 11 12 13 14
1960 0.071 0.210 0.461 0.846 1.381 2.073 2.923 3.924 5.063 6.323 7.684 9.123 10.616
1961 0.071 0.210 0.461 0.846 1.381 2.073 2.923 3.924 5.063 6.323 7.684 9.123 10.616
1962 0.071 0.210 0.461 0.846 1.381 2.073 2.923 3.924 5.063 6.323 7.684 9.123 10.616
1963 0.071 0.210 0.461 0.846 1.381 2.073 2.923 3.924 5.063 6.323 7.684 9.123 10.616
1964 0.070 0.210 0.461 0.846 1.381 2.073 2.923 3.924 5.063 6.323 7.684 9.123 10.616
1965 0.070 0.209 0.461 0.846 1.381 2.073 2.923 3.924 5.063 6.323 7.684 9.123 10.616
1966 0.071 0.209 0.459 0.846 1.381 2.073 2.923 3.924 5.063 6.323 7.684 9.123 10.616
1967 0.068 0.210 0.459 0.844 1.381 2.073 2.923 3.924 5.063 6.323 7.684 9.123 10.616
1968 0.067 0.201 0.461 0.845 1.378 2.073 2.923 3.924 5.063 6.323 7.684 9.123 10.616
1969 0.067 0.197 0.439 0.846 1.383 2.072 2.923 3.924 5.063 6.323 7.684 9.123 10.616
1970 0.067 0.198 0.428 0.803 1.381 2.081 2.923 3.924 5.063 6.323 7.684 9.123 10.616
1971 0.068 0.199 0.431 0.780 1.306 2.073 2.940 3.927 5.063 6.323 7.684 9.123 10.616
1972 0.070 0.204 0.435 0.788 1.266 1.957 2.923 3.953 5.071 6.323 7.684 9.123 10.616
1973 0.066 0.212 0.452 0.797 1.282 1.892 2.756 3.924 5.108 6.337 7.684 9.123 10.616
1974 0.063 0.198 0.473 0.836 1.302 1.922 2.660 3.696 5.063 6.388 7.704 9.123 10.616
1975 0.062 0.182 0.435 0.884 1.375 1.956 2.707 3.563 4.768 6.323 7.770 9.150 10.616
1976 0.063 0.180 0.391 0.801 1.466 2.078 2.761 3.632 4.591 5.955 7.684 9.232 10.650
1977 0.064 0.184 0.386 0.708 1.312 2.230 2.948 3.710 4.686 5.731 7.240 9.123 10.748
1978 0.066 0.185 0.396 0.697 1.142 1.978 3.179 3.978 4.795 5.856 6.966 8.602 10.616
1979 0.065 0.190 0.397 0.715 1.120 1.698 2.800 4.307 5.155 5.998 7.124 8.278 10.021
1980 0.065 0.186 0.407 0.714 1.152 1.662 2.377 3.773 5.597 6.463 7.303 8.470 9.646
1981 0.066 0.183 0.395 0.733 1.148 1.711 2.321 3.174 4.886 7.028 7.877 8.687 9.873
1982 0.067 0.187 0.385 0.703 1.177 1.702 2.394 3.093 4.081 6.123 8.572 9.374 10.128
1983 0.066 0.191 0.391 0.680 1.119 1.744 2.375 3.194 3.971 5.088 7.464 10.199 10.928
1984 0.068 0.188 0.401 0.690 1.073 1.644 2.432 3.163 4.104 4.945 6.182 8.887 11.876
1985 0.070 0.192 0.393 0.706 1.087 1.565 2.275 3.236 4.058 5.112 6.001 7.347 10.369
1986 0.069 0.199 0.403 0.692 1.112 1.581 2.153 3.007 4.147 5.048 6.207 7.127 8.570
1987 0.068 0.196 0.420 0.711 1.089 1.618 2.171 2.830 3.833 5.155 6.121 7.373 8.309
1988 0.067 0.195 0.415 0.745 1.121 1.584 2.220 2.848 3.589 4.741 6.246 7.263 8.595
1989 0.067 0.191 0.412 0.737 1.180 1.632 2.172 2.912 3.606 4.421 5.722 7.405 8.460
1990 0.070 0.194 0.405 0.732 1.168 1.726 2.242 2.848 3.685 4.434 5.315 6.762 8.618
1991 0.075 0.206 0.416 0.721 1.162 1.710 2.379 2.943 3.604 4.529 5.323 6.262 7.850
1992 0.076 0.225 0.447 0.746 1.146 1.702 2.360 3.133 3.727 4.429 5.434 6.263 7.251
1993 0.075 0.229 0.498 0.814 1.195 1.681 2.350 3.111 3.979 4.585 5.315 6.390 7.242
1994 0.076 0.221 0.507 0.922 1.319 1.765 2.324 3.100 3.953 4.905 5.504 6.250 7.386
1995 0.077 0.224 0.482 0.937 1.515 1.967 2.456 3.068 3.941 4.878 5.900 6.476 7.225
1996 0.078 0.224 0.485 0.879 1.539 2.286 2.759 3.260 3.906 4.865 5.871 6.952 7.488
1997 0.082 0.224 0.478 0.879 1.427 2.321 3.236 3.688 4.170 4.827 5.859 6.923 8.048
1998 0.085 0.237 0.475 0.857 1.418 2.131 3.284 4.356 4.743 5.173 5.819 6.911 8.019
1999 0.087 0.246 0.504 0.843 1.369 2.107 2.991 4.418 5.629 5.909 6.257 6.870 8.008
2000 0.089 0.253 0.524 0.898 1.335 2.016 2.943 3.997 5.707 7.034 7.168 7.406 7.968
2001 0.088 0.258 0.540 0.937 1.426 1.952 2.795 3.918 5.138 7.126 8.544 8.501 8.607
2002 0.088 0.252 0.550 0.966 1.492 2.090 2.687 3.697 5.018 6.395 8.651 10.131 9.888
2003 0.091 0.249 0.530 0.983 1.539 2.189 2.882 3.534 4.711 6.228 7.747 10.251 11.765
2004 0.093 0.257 0.520 0.936 1.565 2.259 3.023 3.795 4.479 5.821 7.528 9.172 11.896
2005 0.093 0.263 0.536 0.911 1.474 2.296 3.121 3.984 4.814 5.510 7.011 8.897 10.647
2006 0.093 0.263 0.548 0.936 1.425 2.142 3.169 4.114 5.057 5.925 6.613 8.264 10.315
2007 0.092 0.262 0.547 0.956 1.459 2.057 2.932 4.173 5.221 6.225 7.110 7.771 9.562
2008 0.095 0.261 0.545 0.954 1.489 2.100 2.799 3.833 5.293 6.425 7.470 8.353 8.971
2009 0.096 0.267 0.542 0.950 1.485 2.142 2.851 3.640 4.832 6.508 7.707 8.774 9.637
2010 0.096 0.271 0.553 0.943 1.478 2.133 2.905 3.700 4.568 5.912 7.801 9.048 10.117
2011 0.097 0.271 0.563 0.963 1.467 2.123 2.890 3.766 4.632 5.568 7.059 9.151 10.426
2012 0.094 0.272 0.561 0.979 1.495 2.107 2.876 3.744 4.712 5.635 6.627 8.255 10.538
2013 0.091 0.264 0.563 0.975 1.519 2.145 2.854 3.725 4.680 5.727 6.693 7.729 9.486
2014 0.089 0.257 0.546 0.978 1.513 2.177 2.903 3.696 4.656 5.685 6.796 7.792 8.862
2015 0.088 0.252 0.533 0.948 1.516 2.168 2.943 3.755 4.619 5.655 6.743 7.907 8.920
2016 0.087 0.247 0.521 0.926 1.471 2.171 2.930 3.804 4.689 5.609 6.707 7.840 9.045
2017 0.087 0.245 0.511 0.906 1.437 2.107 2.932 3.785 4.746 5.688 6.652 7.799 8.964

Maturity at age

Estimated proportions mature for female cod from NAFO Div. 2J+3KL from DFO RV autumn bottom trawl surveys. Estimates were obtained from a cohort-specific binomial logistic regression model fitted to observed proportions mature at age.
2 3 4 5 6 7 8 9 10 11 12 13 14
1960 0.000 0.001 0.011 0.158 0.763 0.988 0.999 1.000 1.000 1.000 1.000 1.000 1
1961 0.000 0.000 0.011 0.158 0.763 0.988 0.999 1.000 1.000 1.000 1.000 1.000 1
1962 0.000 0.001 0.001 0.158 0.763 0.988 0.999 1.000 1.000 1.000 1.000 1.000 1
1963 0.000 0.001 0.013 0.040 0.763 0.988 0.999 1.000 1.000 1.000 1.000 1.000 1
1964 0.002 0.004 0.020 0.186 0.649 0.988 0.999 1.000 1.000 1.000 1.000 1.000 1
1965 0.003 0.010 0.040 0.247 0.799 0.988 0.999 1.000 1.000 1.000 1.000 1.000 1
1966 0.005 0.016 0.066 0.335 0.842 0.986 1.000 1.000 1.000 1.000 1.000 1.000 1
1967 0.008 0.028 0.092 0.360 0.858 0.989 0.999 1.000 1.000 1.000 1.000 1.000 1
1968 0.001 0.039 0.129 0.385 0.826 0.986 0.999 1.000 1.000 1.000 1.000 1.000 1
1969 0.000 0.009 0.166 0.440 0.795 0.973 0.999 1.000 1.000 1.000 1.000 1.000 1
1970 0.000 0.004 0.066 0.496 0.812 0.960 0.996 1.000 1.000 1.000 1.000 1.000 1
1971 0.004 0.000 0.045 0.364 0.829 0.960 0.993 0.999 1.000 1.000 1.000 1.000 1
1972 0.007 0.019 0.008 0.368 0.823 0.960 0.992 0.999 1.000 1.000 1.000 1.000 1
1973 0.054 0.037 0.092 0.200 0.879 0.974 0.992 0.999 1.000 1.000 1.000 1.000 1
1974 0.101 0.130 0.176 0.372 0.880 0.989 0.997 0.998 1.000 1.000 1.000 1.000 1
1975 0.000 0.222 0.299 0.543 0.874 0.995 0.999 1.000 1.000 1.000 1.000 1.000 1
1976 0.002 0.004 0.422 0.597 0.868 0.984 1.000 1.000 1.000 1.000 1.000 1.000 1
1977 0.005 0.015 0.043 0.650 0.847 0.974 0.998 1.000 1.000 1.000 1.000 1.000 1
1978 0.005 0.028 0.114 0.355 0.826 0.948 0.995 1.000 1.000 1.000 1.000 1.000 1
1979 0.002 0.031 0.140 0.519 0.871 0.924 0.982 0.999 1.000 1.000 1.000 1.000 1
1980 0.000 0.017 0.166 0.475 0.901 0.988 0.969 0.993 1.000 1.000 1.000 1.000 1
1981 0.000 0.003 0.113 0.553 0.834 0.987 0.999 0.987 0.997 1.000 1.000 1.000 1
1982 0.002 0.004 0.044 0.479 0.885 0.965 0.998 1.000 0.995 0.999 1.000 1.000 1
1983 0.000 0.005 0.019 0.059 0.398 0.869 0.980 0.994 1.000 1.000 0.998 1.000 1
1984 0.000 0.000 0.024 0.142 0.480 0.906 0.980 0.997 0.999 1.000 1.000 0.999 1
1985 0.000 0.000 0.004 0.111 0.590 0.932 0.993 0.997 1.000 1.000 1.000 1.000 1
1986 0.000 0.001 0.003 0.053 0.388 0.926 0.995 1.000 1.000 1.000 1.000 1.000 1
1987 0.000 0.001 0.014 0.040 0.411 0.763 0.991 1.000 1.000 1.000 1.000 1.000 1
1988 0.000 0.002 0.013 0.122 0.380 0.897 0.942 0.999 1.000 1.000 1.000 1.000 1
1989 0.000 0.002 0.015 0.115 0.580 0.902 0.991 0.988 1.000 1.000 1.000 1.000 1
1990 0.000 0.001 0.017 0.098 0.569 0.932 0.993 0.999 0.998 1.000 1.000 1.000 1
1991 0.000 0.000 0.018 0.130 0.434 0.931 0.993 1.000 1.000 1.000 1.000 1.000 1
1992 0.001 0.001 0.013 0.250 0.567 0.844 0.993 0.999 1.000 1.000 1.000 1.000 1
1993 0.008 0.009 0.036 0.276 0.859 0.920 0.975 0.999 1.000 1.000 1.000 1.000 1
1994 0.000 0.029 0.071 0.510 0.916 0.991 0.990 0.996 1.000 1.000 1.000 1.000 1
1995 0.000 0.003 0.098 0.404 0.966 0.997 1.000 0.999 1.000 1.000 1.000 1.000 1
1996 0.001 0.002 0.034 0.282 0.858 0.999 1.000 1.000 1.000 1.000 1.000 1.000 1
1997 0.008 0.008 0.029 0.294 0.588 0.982 1.000 1.000 1.000 1.000 1.000 1.000 1
1998 0.003 0.030 0.076 0.311 0.834 0.838 0.998 1.000 1.000 1.000 1.000 1.000 1
1999 0.000 0.014 0.109 0.464 0.872 0.984 0.949 1.000 1.000 1.000 1.000 1.000 1
2000 0.000 0.004 0.067 0.325 0.900 0.990 0.999 0.985 1.000 1.000 1.000 1.000 1
2001 0.001 0.001 0.040 0.263 0.654 0.990 0.999 1.000 0.996 1.000 1.000 1.000 1
2002 0.005 0.010 0.028 0.325 0.640 0.881 0.999 1.000 1.000 0.999 1.000 1.000 1
2003 0.001 0.026 0.080 0.380 0.849 0.898 0.967 1.000 1.000 1.000 1.000 1.000 1
2004 0.001 0.008 0.112 0.425 0.928 0.985 0.978 0.991 1.000 1.000 1.000 1.000 1
2005 0.003 0.007 0.056 0.380 0.863 0.996 0.999 0.996 0.998 1.000 1.000 1.000 1
2006 0.004 0.019 0.089 0.315 0.748 0.982 1.000 1.000 0.999 0.999 1.000 1.000 1
2007 0.001 0.023 0.118 0.560 0.782 0.935 0.998 1.000 1.000 1.000 1.000 1.000 1
2008 0.003 0.006 0.109 0.487 0.943 0.965 0.986 1.000 1.000 1.000 1.000 1.000 1
2009 0.002 0.015 0.045 0.389 0.871 0.995 0.995 0.997 1.000 1.000 1.000 1.000 1
2010 0.003 0.013 0.077 0.268 0.768 0.980 1.000 0.999 0.999 1.000 1.000 1.000 1
2011 0.009 0.017 0.086 0.314 0.739 0.945 0.997 1.000 1.000 1.000 1.000 1.000 1
2012 0.000 0.045 0.102 0.404 0.714 0.956 0.989 1.000 1.000 1.000 1.000 1.000 1
2013 0.001 0.004 0.199 0.424 0.830 0.932 0.994 0.998 1.000 1.000 1.000 1.000 1
2014 0.001 0.005 0.027 0.565 0.827 0.972 0.987 0.999 1.000 1.000 1.000 1.000 1
2015 0.000 0.009 0.048 0.176 0.872 0.969 0.996 0.998 1.000 1.000 1.000 1.000 1
2016 0.001 0.003 0.077 0.321 0.623 0.973 0.995 0.999 1.000 1.000 1.000 1.000 1
2017 0.001 0.006 0.032 0.432 0.816 0.927 0.995 0.999 1.000 1.000 1.000 1.000 1

Tag summary

Number of tagged cod released and recaptured by experiment.
Year Experiment NAFO division Nreleased Nrecaptured
1962 6201 2J 24 11
1962 6204 3K 17 10
1962 6205 2J 43 8
1962 6206 3K 21 11
1962 6208 3L 5 4
1962 6210 3L 32 14
1963 6307 3L 33 5
1963 6308 2J 24 5
1963 6309 2J 32 10
1963 6315 3L 31 21
1963 6316 3L 29 18
1963 6317 3K 27 17
1963 6318 3K 27 11
1963 6319 3L 36 14
1964 6401 3L 24 5
1964 6403 3L 34 7
1964 6404 2J 36 7
1964 6405 2J 23 3
1964 6406 3K 11 1
1964 6407 3L 24 1
1964 6409 2J 26 7
1964 6414 3L 36 10
1964 6416 3L 16 11
1965 6501 3L 19 4
1965 6502 3L 32 18
1965 6505 3L 33 12
1966 6601 2J 40 13
1978 7801 3K-2J 928 99
1979 7901 3K 2002 360
1979 7902 3K-3L 345 38
1979 7905 3L 199 66
1980 8002 3K 2447 306
1980 8003 3L 993 106
1980 8004 3L 308 141
1980 8005 3L 195 67
1980 8006 3L 357 89
1981 8101 3L 68 29
1981 8102 3K 580 87
1981 8103 2J 1122 213
1981 8104 2J 175 25
1981 8105 3K 1791 286
1981 8106 3K 44 1
1981 8107 3L 128 55
1981 8108 3L 99 35
1981 8110 2J 12 1
1982 8201 3L 747 58
1982 8202 2J 90 2
1982 8203 2J 1498 366
1982 8204 3K 1195 173
1982 8206 3K-3L 199 3
1982 8207 3L 1138 320
1982 8208 3L 450 100
1982 8209 3K 183 38
1982 8211 3K 176 27
1982 8212 3L 2 0
1983 8301 3L 995 18
1983 8302 3K 998 189
1983 8303 3K-2J 1995 331
1983 8304 3L 694 37
1983 8305 3K 168 35
1983 8306 3K 96 20
1983 8307 3K 318 26
1984 8401 3L 492 17
1984 8402 3L 297 4
1984 8403 3L 1695 293
1984 8404 3K 134 24
1984 8405 3K 161 34
1984 8406 3K 215 33
1984 8407 2J 796 85
1985 8501 3L 490 75
1985 8502 3L 1092 146
1985 8503 3K 366 16
1985 8504 2J 200 13
1985 8505 2J 284 66
1985 8506 2J 189 63
1986 8604 3L 100 4
1986 8605 3K 89 10
1986 8606 3K 1482 299
1986 8607 3K 298 43
1986 8608 3L 735 124
1986 8610 3L 259 19
1987 8701 3K 761 126
1987 8702 3L 489 60
1987 8703 3L 692 95
1987 8704 3K 600 101
1987 8705 3L 500 96
1988 8801 3K 911 100
1988 8802 3L 592 144
1988 8803 3L 506 56
1988 8804 3L 495 60
1988 8805 3L 500 33
1988 8806 3K 747 101
1988 8807 3K 474 52
1989 8901 3K 872 35
1989 8902 3L 523 25
1989 8903 3K 534 34
1989 8904 3L 500 45
1989 8905 3L 250 33
1989 8906 3L 1437 62
1989 8908 2J 297 9
1990 9001 3K-3L 1198 52
1990 9002 3L 82 0
1990 9003 3L 291 1
1990 9004 3L 804 123
1990 9005 3L 1016 146
1991 9101 3L 1548 483
1991 9102 3L 1741 75
1991 9103 3L 140 0
1991 9104 3L 1130 3
1991 9105 3L 998 74
1991 9106 3K 994 54
1991 9107 3L 1397 89
1991 9108 3L 97 3
1992 9201 3K-3L 2059 5
1992 9202 3K 5483 48
1992 9203 3L 1062 44
1993 9301 3L 48 1
1993 9302 3L 1039 32
1995 9501 3L 506 22
1995 9502 3L 212 25
1995 9503 3L 2044 122
1997 1997003 3L 589 62
1997 1997007 3L 690 185
1997 1997009 3L 464 75
1997 1997010 3L 314 46
1997 1997011 3L 68 15
1997 1997012 3K 258 24
1997 1997013 3L 144 31
1997 1997014 3L 617 69
1997 1997016 3L 199 21
1998 1998007 3K 113 25
1999 1999006 3L 731 204
1999 1999007 3L 363 85
1999 1999008 3L 309 47
1999 1999009 3L 71 21
1999 1999010 3L 221 40
1999 1999011 3K 119 26
1999 1999012 3K 627 198
1999 1999013 3L 221 42
1999 1999014 3L 219 32
1999 1999015 3L 162 24
1999 1999016 3L 372 58
1999 1999017 3L 305 61
1999 1999018 3L 241 37
1999 1999019 3L 153 21
1999 1999020 3K 6 3
1999 1999021 3K 3 1
1999 1999022 3K 3 0
1999 1999023 3L 19 10
1999 1999024 3L 200 31
1999 1999025 3K 571 176
1999 1999026 3K 194 91
1999 1999027 3L 16 2
1999 1999028 3L 486 73
1999 1999029 3L 176 23
1999 1999030 3L 456 77
1999 1999031 3L 273 77
1999 1999033 3L 107 3
1999 1999034 3K 101 5
1999 1999035 3L 202 16
1999 1999036 3L 16 2
1999 1999037 3K 60 4
1999 1999038 3L 138 25
1999 1999041 3L 46 3
1999 1999042 3L 512 90
1999 1999044 3L 397 82
2000 2000005 3L 94 3
2000 2000011 3L 28 3
2000 2000012 3L 55 12
2000 2000013 3L 43 6
2000 2000014 3L 333 74
2000 2000015 3L 266 32
2000 2000016 3L 19 4
2000 2000017 3L 1 0
2000 2000018 3L 307 40
2000 2000019 3L 1032 152
2000 2000020 3L 194 56
2000 2000021 3L 213 25
2000 2000022 3L 25 5
2000 2000023 3K 250 21
2000 2000024 3L 122 40
2000 2000025 3L 14 1
2000 2000026 3L 16 0
2000 2000027 3L 171 16
2000 2000028 3K 138 12
2000 2000029 3L 50 4
2000 2000030 3L 32 1
2000 2000031 3L 32 3
2000 2000032 3L 8 0
2001 2001012 3L 424 74
2001 2001013 3L 16 0
2001 2001014 3L 38 9
2001 2001015 3L 704 115
2001 2001016 3L 32 5
2001 2001017 3L 17 4
2001 2001018 3L 674 205
2001 2001019 3L 889 112
2001 2001020 3L 99 26
2001 2001021 3L 1690 457
2001 2001022 3L 39 9
2001 2001023 3L 157 28
2001 2001024 3L 63 14
2001 2001026 3L 991 146
2002 2002005 3L 91 1
2002 2002009 3L 51 3
2002 2002010 3L 913 186
2002 2002011 3L 130 35
2002 2002013 3L 151 30
2002 2002014 3L 3 1
2002 2002015 3L 1612 263
2002 2002016 3L 13 2
2002 2002017 3L 254 41
2002 2002018 3K 590 74
2002 2002019 3L 91 19
2002 2002020 3K 40 3
2002 2002021 3K 20 3
2002 2002022 3K 100 7
2002 2002023 3L 981 122
2003 2003001 3L 438 7
2004 2004001 3L 921 68
2005 2005001 3L 589 50
2005 2005002 3K 190 12
2005 2005003 3L 103 11
2005 2005008 3L 6 0
2005 2005009 3L 42 5
2006 2006001 3L 376 32
2006 2006002 3L 9 1
2006 2006003 3L 103 4
2006 2006004 3L 344 20
2006 2006005 3L 1345 74
2006 2006006 3K 485 58
2006 2006007 3K 1277 119
2006 2006008 3K 938 53
2006 2006009 3L 466 31
2006 2006010 3L 204 26
2006 2006011 3L 308 26
2006 2006012 3L 575 31
2007 2007001 3K 1127 2
2007 2007002 3L 110 7
2007 2007003 3L 241 13
2007 2007006 3K 505 25
2007 2007009 3L 549 49
2007 2007012 3L 54 5
2007 2007015 3L 130 4
2007 2007016 3L 958 55
2007 2007017 3L 33 2
2008 2008001 3K 2266 71
2008 2008002 3L 104 5
2008 2008003 3L 611 21
2008 2008004 3L 3 1
2008 2008005 3L 12 3
2008 2008007 3K 536 38
2008 2008008 3K 325 10
2008 2008009 3L 453 42
2008 2008010 3K 197 14
2008 2008011 3L 373 26
2008 2008012 3L 425 26
2008 2008013 3L 115 4
2009 2009001 3L 39 2
2009 2009002 3L 1168 62
2009 2009004 3L 595 32
2009 2009005 2J 1 0
2009 2009006 3L 236 40
2009 2009007 3L 15 1
2009 2009008 3L 407 15
2009 2009009 3L 122 2
2009 2009010 3L 527 25
2009 2009011 3L 6 0
2009 2009012 3L 42 2
2010 2010002 3L 271 9
2010 2010003 3L 204 10
2010 2010004 3L 48 7
2010 2010005 3K 18 2
2010 2010006 3L 10 0
2010 2010007 3K 225 6
2010 2010008 3L 182 4
2010 2010009 3L 612 37
2010 2010010 3L 121 4
2010 2010011 3L 35 5
2010 2010012 3L 13 0
2010 2010013 3K 234 8
2011 2011003 3L 112 17
2011 2011004 3L 100 10
2011 2011005 3L 111 5
2011 2011006 3L 533 13
2011 2011007 3L 545 14
2011 2011008 3L 22 2
2011 2011009 3L 261 19
2011 2011010 3L 282 19
2012 2012003 3K 267 13
2012 2012006 2J 162 12
2012 2012007 3L 43 2
2012 2012008 3L 289 4
2012 2012009 3L 40 1
2012 2012010 3L 505 14
2012 2012011 3L 123 5
2012 2012012 3L 50 3
2013 2013003 3L 1039 47
2013 2013004 3K 794 33
2013 2013007 3L 37 4
2013 2013008 2J 301 4
2013 2013009 3L 6 0
2013 2013010 3L 53 2
2013 2013011 3L 73 0
2014 2014001 3K 30 0
2014 2014002 3L 429 40
2014 2014003 3L 20 4
2014 2014004 3L 28 3
2014 2014005 2J 149 0
2014 2014006 3L 913 22
2014 2014007 3K 484 11
2014 2014008 3L 1033 33
2014 2014009 3L 77 2
2014 2014010 3K 342 6
2014 2014011 3L 531 19
2014 2014013 3K 1075 17
2014 2014014 3L 17 0
2014 2014016 3L 46 0
2015 2015001 3K 654 7
2015 2015002 2J 682 2
2015 2015003 3K 162 2
2015 2015004 3L 232 11
2015 2015005 3K 106 5
2015 2015006 3K 314 13
2015 2015007 3L 723 31
2015 2015008 3K 620 12
2015 2015010 3L 280 11
2015 2015011 3L 560 15
2015 2015012 3L 606 16
2015 2015013 3L 352 10
2015 2015014 3L 101 5
2015 2015017 3L 3 0
2015 2015018 3K 17 0
2015 2015019 3K 3 0
2015 2015020 3L 124 3
2015 2015023 3L 25 0
2015 2015024 3L 206 5
2016 2016001 3L 41 2
2016 2016002 3L 593 12
2016 2016003 3K 6 0
2016 2016004 3K 745 30
2016 2016005 3L 196 3
2016 2016006 3K 611 18
2016 2016007 3K 687 10
2016 2016009 3K 363 35
2016 2016010 3L 348 5
2016 2016011 3K 415 24
2016 2016012 3K 494 23
2016 2016013 3L 13 0
2016 2016014 3L 161 0
2016 2016015 3L 202 1
2016 2016016 3L 96 2
2016 2016018 3K 1017 8
2016 2016020 3K 407 4
2017 2017001 3L 6 0
2017 2017009 3L 220 4
2017 2017017 3K 86 0
2017 2017018 3K 100 3
2017 2017019 3K 158 3
2017 2017020 3K 162 5
2017 2017021 3K 187 4
2017 2017022 3K 233 5
2017 2017029 3K 109 1

Settings

Row

Catch bounds

Lower and upper catch multipliers used for generating catch bounds.
Year Lower Upper
1983 1.1 1.500
1984 1.1 1.500
1985 1.1 1.500
1986 1.1 1.500
1987 1.1 1.500
1988 1.1 1.500
1989 1.1 1.500
1990 1.1 1.500
1991 1.1 1.500
1992 1.1 2.000
1993 1.1 2.000
1994 1.1 2.000
1995 1.1 2.000
1996 1.1 2.000
1997 1.1 2.000
1998 1.1 2.000
1999 1.1 2.000
2000 1.1 2.000
2001 1.1 2.000
2002 1.1 2.000
2003 1.1 2.000
2004 1.1 2.000
2005 1.1 2.000
2006 1.1 1.352
2007 1.1 1.573
2008 1.1 1.190
2009 1.1 1.573
2010 1.1 1.573
2011 1.1 1.449
2012 1.1 1.397
2013 1.1 1.573
2014 1.1 1.573
2015 1.1 1.573
2016 1.1 1.573
2017 1.1 1.573

Baseline M

Baseline levels of natural mortality (M) at age.
2 3 4 5 6 7 8 9 10 11 12 13 14
1983 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
1984 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
1985 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
1986 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
1987 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
1988 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
1989 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
1990 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
1991 1.0225 1.155 1.2275 1.8375 2.15 2.535 2.0475 2.0475 2.0475 2.0475 2.0475 2.0475 2.0475
1992 1.0225 1.155 1.2275 1.8375 2.15 2.535 2.0475 2.0475 2.0475 2.0475 2.0475 2.0475 2.0475
1993 1.0225 1.155 1.2275 1.8375 2.15 2.535 2.0475 2.0475 2.0475 2.0475 2.0475 2.0475 2.0475
1994 1.0225 1.155 1.2275 1.8375 2.15 2.535 2.0475 2.0475 2.0475 2.0475 2.0475 2.0475 2.0475
1995 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
1996 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
1997 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
1998 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
1999 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
2000 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
2001 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
2002 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
2003 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
2004 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
2005 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
2006 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
2007 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
2008 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
2009 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
2010 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
2011 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
2012 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
2013 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
2014 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
2015 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
2016 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600
2017 0.4300 0.380 0.3800 0.4000 0.38 0.420 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600 0.3600

Output

Row

Parameter estimates

Estimates of model fits, population parameters and variance parameters, with coefficients of variation.
Quantity Symbol Estimate CV
Number of parameters \(k\) 118.000
Negative log-likelihood \(ln(L)\) 9093.815
Akaike information criterion \(AIC\) 18423.629
RV survey observation error \(\sigma_{RV}\) 0.405 0.060
SN survey observation error \(\sigma_{SN}\) 0.498 0.064
SN q random walk error \(\sigma_{SN_{RW}}\) 0.284 0.200
Age composition error \(\sigma_{P}\) 0.238 0.060
Process error variance \(\sigma_{\delta}\) 0.226 0.170
Age correlation in process errors \(\varphi_{\delta, age}\) 0.818 0.448
Year correlation in process errors \(\varphi_{\delta, year}\) 0.592 0.533
F variance parameter \(\sigma_{F}\) 0.286 0.072
Age correlation in F \(\varphi_{F,age}\) 0.872 0.373
Year correlation in F \(\varphi_{F,year}\) 0.995 0.399
D variance parameter \(\sigma_{D}\) 0.672 0.189
Age correlation in D \(\varphi_{D,age}\) 0.866 0.469
Year correlation in D \(\varphi_{D,year}\) 0.897 0.502
Mean log-recruitment (pre 1992; million) \(r_1\) 2.085 0.425
Mean log-recruitment (post 1992; million) \(r_2\) 0.097 0.508
Variance of log-recruitment \(\sigma_{r}\) 0.381 0.164
Variance of tagging F deviation from stock F (pre 1997) \(\sigma_{f_{x,1}}\) 0.733 0.124
Variance of tagging F deviation from stock F (post 1997) \(\sigma_{f_{x,2}}\) 1.063 0.080
NB overdispersion parameter for pre 1997 tag experiments \(\kappa_1\) 46.315 0.495
NB overdispersion parameter for post 1997 tag experiments \(\kappa_2\) 8.425 0.160
Limit reference point (kt) \(B_{lim}\) 850.907 0.096
2018 spawning stock biomass (kt) \(SSB_{2018}\) 315.308 0.176
2018 relative spawning stock biomass \(SSB_{2018} / B_{lim}\) 0.371 0.159
2018 total biomass (kt) \(B_{2018}\) 466.577 0.157
2017 average total mortality \(\bar{Z}_{5+,2017}\) 0.765 0.228
2017 average natural mortality \(\bar{M}_{5+,2017}\) 0.741 0.234
2017 average fishing mortality \(\bar{F}_{5+,2017}\) 0.025 0.135

Note: RV = DFO Research Vessel survey; SN = Sentinel survey; SS = Smith Sound; D = proportion of stock in Smith Sound; NB = negative binomial

Parameter estimates (retro)

Estimates of retrospective model fits, population parameters and variance parameters, with coefficients of variation.
Quantity Symbol Terminal Year Estimate CV
Number of parameters \(k\) 2008 118.000
2009 118.000
2010 118.000
2011 118.000
2012 118.000
2013 118.000
2014 118.000
2015 118.000
2016 118.000
2017 118.000
Negative log-likelihood \(ln(L)\) 2008 6831.452
2009 7141.530
2010 7371.221
2011 7580.090
2012 7761.579
2013 7955.805
2014 8138.518
2015 8399.801
2016 8763.776
2017 9093.815
Akaike information criterion \(AIC\) 2008 13898.904
2009 14519.060
2010 14978.441
2011 15396.181
2012 15759.159
2013 16147.611
2014 16513.035
2015 17035.602
2016 17763.553
2017 18423.629
RV survey observation error \(\sigma_{RV}\) 2008 0.393 0.066
2009 0.433 0.068
2010 0.440 0.062
2011 0.431 0.061
2012 0.421 0.060
2013 0.410 0.059
2014 0.403 0.057
2015 0.399 0.056
2016 0.395 0.055
2017 0.405 0.060
SN survey observation error \(\sigma_{SN}\) 2008 0.334 0.084
2009 0.373 0.082
2010 0.402 0.078
2011 0.408 0.076
2012 0.405 0.074
2013 0.412 0.070
2014 0.408 0.068
2015 0.409 0.066
2016 0.439 0.064
2017 0.498 0.064
SN q random walk error \(\sigma_{SN_{RW}}\) 2008 0.271 0.248
2009 0.246 0.257
2010 0.245 0.248
2011 0.238 0.244
2012 0.242 0.238
2013 0.232 0.236
2014 0.227 0.231
2015 0.235 0.226
2016 0.288 0.203
2017 0.284 0.200
Age composition error \(\sigma_{P}\) 2008 0.265 0.069
2009 0.260 0.068
2010 0.259 0.065
2011 0.253 0.064
2012 0.249 0.063
2013 0.249 0.061
2014 0.246 0.060
2015 0.247 0.060
2016 0.242 0.060
2017 0.238 0.060
Process error variance \(\sigma_{\delta}\) 2008 0.241 0.180
2009 0.235 0.182
2010 0.220 0.174
2011 0.224 0.170
2012 0.228 0.167
2013 0.227 0.168
2014 0.232 0.167
2015 0.229 0.163
2016 0.223 0.164
2017 0.226 0.170
Age correlation in process errors \(\varphi_{\delta, age}\) 2008 0.780 0.500
2009 0.775 0.486
2010 0.774 0.473
2011 0.767 0.461
2012 0.775 0.461
2013 0.810 0.472
2014 0.798 0.447
2015 0.799 0.442
2016 0.800 0.438
2017 0.818 0.448
Year correlation in process errors \(\varphi_{\delta, year}\) 2008 0.580 0.593
2009 0.595 0.586
2010 0.615 0.538
2011 0.614 0.520
2012 0.592 0.517
2013 0.604 0.516
2014 0.584 0.509
2015 0.591 0.497
2016 0.612 0.494
2017 0.592 0.533
F variance parameter \(\sigma_{F}\) 2008 0.295 0.085
2009 0.293 0.083
2010 0.287 0.082
2011 0.286 0.080
2012 0.280 0.080
2013 0.274 0.078
2014 0.273 0.077
2015 0.280 0.075
2016 0.284 0.074
2017 0.286 0.072
Age correlation in F \(\varphi_{F,age}\) 2008 0.916 0.558
2009 0.902 0.507
2010 0.903 0.502
2011 0.900 0.484
2012 0.896 0.467
2013 0.894 0.454
2014 0.892 0.443
2015 0.879 0.403
2016 0.875 0.381
2017 0.872 0.373
Year correlation in F \(\varphi_{F,year}\) 2008 0.990 0.355
2009 0.991 0.360
2010 0.991 0.353
2011 0.990 0.334
2012 0.990 0.335
2013 0.992 0.349
2014 0.992 0.355
2015 0.994 0.380
2016 0.994 0.389
2017 0.995 0.399
D variance parameter \(\sigma_{D}\) 2008 0.664 0.172
2009 0.636 0.198
2010 0.632 0.199
2011 0.642 0.195
2012 0.650 0.191
2013 0.658 0.188
2014 0.665 0.185
2015 0.671 0.183
2016 0.676 0.183
2017 0.672 0.189
Age correlation in D \(\varphi_{D,age}\) 2008 0.794 0.462
2009 0.868 0.484
2010 0.869 0.482
2011 0.867 0.474
2012 0.865 0.468
2013 0.864 0.465
2014 0.861 0.458
2015 0.859 0.455
2016 0.861 0.458
2017 0.866 0.469
Year correlation in D \(\varphi_{D,year}\) 2008 0.894 0.464
2009 0.905 0.516
2010 0.906 0.521
2011 0.904 0.516
2012 0.902 0.510
2013 0.900 0.504
2014 0.899 0.499
2015 0.897 0.495
2016 0.895 0.495
2017 0.897 0.502
Mean log-recruitment (pre 1992; million) \(r_1\) 2008 2.116 0.468
2009 2.082 0.457
2010 2.094 0.432
2011 2.196 0.421
2012 2.186 0.419
2013 2.140 0.418
2014 2.226 0.458
2015 2.096 0.425
2016 2.052 0.418
2017 2.085 0.425
Mean log-recruitment (post 1992; million) \(r_2\) 2008 0.093 0.558
2009 0.088 0.547
2010 0.088 0.520
2011 0.094 0.511
2012 0.096 0.508
2013 0.096 0.507
2014 0.105 0.545
2015 0.099 0.511
2016 0.096 0.503
2017 0.097 0.508
Variance of log-recruitment \(\sigma_{r}\) 2008 0.429 0.184
2009 0.416 0.181
2010 0.390 0.180
2011 0.382 0.178
2012 0.381 0.179
2013 0.379 0.179
2014 0.421 0.170
2015 0.383 0.168
2016 0.377 0.164
2017 0.381 0.164
Variance of tagging F deviation from stock F (pre 1997) \(\sigma_{f_{x,1}}\) 2008 0.740 0.124
2009 0.739 0.124
2010 0.741 0.124
2011 0.747 0.124
2012 0.745 0.123
2013 0.742 0.123
2014 0.742 0.123
2015 0.733 0.124
2016 0.730 0.124
2017 0.733 0.124
Variance of tagging F deviation from stock F (post 1997) \(\sigma_{f_{x,2}}\) 2008 0.978 0.105
2009 0.991 0.102
2010 0.981 0.101
2011 1.102 0.096
2012 1.111 0.094
2013 1.097 0.092
2014 1.084 0.090
2015 1.082 0.086
2016 1.086 0.082
2017 1.063 0.080
NB overdispersion parameter for pre 1997 tag experiments \(\kappa_1\) 2008 48.647 0.515
2009 49.156 0.519
2010 48.840 0.517
2011 47.491 0.505
2012 46.931 0.500
2013 46.629 0.498
2014 45.488 0.487
2015 46.673 0.497
2016 46.673 0.497
2017 46.315 0.495
NB overdispersion parameter for post 1997 tag experiments \(\kappa_2\) 2008 8.762 0.174
2009 8.618 0.171
2010 8.530 0.169
2011 8.373 0.166
2012 8.420 0.166
2013 8.530 0.166
2014 8.598 0.166
2015 8.500 0.164
2016 8.349 0.160
2017 8.425 0.160
Limit reference point (kt) \(B_{lim}\) 2008 869.855 0.098
2009 884.055 0.104
2010 901.426 0.101
2011 946.241 0.089
2012 924.409 0.076
2013 896.806 0.067
2014 901.478 0.070
2015 842.393 0.082
2016 826.910 0.079
2017 850.907 0.096
2009 spawning stock biomass (kt) \(SSB_{2009}\) 2008 117.918 0.135
2010 spawning stock biomass (kt) \(SSB_{2010}\) 2009 75.038 0.190
2011 spawning stock biomass (kt) \(SSB_{2011}\) 2010 103.002 0.157
2012 spawning stock biomass (kt) \(SSB_{2012}\) 2011 105.794 0.142
2013 spawning stock biomass (kt) \(SSB_{2013}\) 2012 153.646 0.122
2014 spawning stock biomass (kt) \(SSB_{2014}\) 2013 244.593 0.113
2015 spawning stock biomass (kt) \(SSB_{2015}\) 2014 280.659 0.127
2016 spawning stock biomass (kt) \(SSB_{2016}\) 2015 329.798 0.123
2017 spawning stock biomass (kt) \(SSB_{2017}\) 2016 465.164 0.125
2018 spawning stock biomass (kt) \(SSB_{2018}\) 2017 315.308 0.176
2009 relative spawning stock biomass \(SSB_{2009} / B_{lim}\) 2008 0.136 0.133
2010 relative spawning stock biomass \(SSB_{2010} / B_{lim}\) 2009 0.085 0.171
2011 relative spawning stock biomass \(SSB_{2011} / B_{lim}\) 2010 0.114 0.143
2012 relative spawning stock biomass \(SSB_{2012} / B_{lim}\) 2011 0.112 0.136
2013 relative spawning stock biomass \(SSB_{2013} / B_{lim}\) 2012 0.166 0.121
2014 relative spawning stock biomass \(SSB_{2014} / B_{lim}\) 2013 0.273 0.115
2015 relative spawning stock biomass \(SSB_{2015} / B_{lim}\) 2014 0.311 0.127
2016 relative spawning stock biomass \(SSB_{2016} / B_{lim}\) 2015 0.392 0.118
2017 relative spawning stock biomass \(SSB_{2017} / B_{lim}\) 2016 0.563 0.119
2018 relative spawning stock biomass \(SSB_{2018} / B_{lim}\) 2017 0.371 0.159
2009 total biomass (kt) \(B_{2009}\) 2008 193.840 0.132
2010 total biomass (kt) \(B_{2010}\) 2009 166.270 0.170
2011 total biomass (kt) \(B_{2011}\) 2010 186.361 0.156
2012 total biomass (kt) \(B_{2012}\) 2011 191.657 0.146
2013 total biomass (kt) \(B_{2013}\) 2012 247.724 0.125
2014 total biomass (kt) \(B_{2014}\) 2013 357.866 0.115
2015 total biomass (kt) \(B_{2015}\) 2014 522.746 0.136
2016 total biomass (kt) \(B_{2016}\) 2015 574.546 0.127
2017 total biomass (kt) \(B_{2017}\) 2016 666.843 0.125
2018 total biomass (kt) \(B_{2018}\) 2017 466.577 0.157
2008 average total mortality \(\bar{Z}_{5+,2008}\) 2008 0.345 0.294
2009 average total mortality \(\bar{Z}_{5+,2009}\) 2009 0.747 0.252
2010 average total mortality \(\bar{Z}_{5+,2010}\) 2010 0.475 0.269
2011 average total mortality \(\bar{Z}_{5+,2011}\) 2011 0.507 0.257
2012 average total mortality \(\bar{Z}_{5+,2012}\) 2012 0.342 0.268
2013 average total mortality \(\bar{Z}_{5+,2013}\) 2013 0.235 0.303
2014 average total mortality \(\bar{Z}_{5+,2014}\) 2014 0.329 0.295
2015 average total mortality \(\bar{Z}_{5+,2015}\) 2015 0.315 0.273
2016 average total mortality \(\bar{Z}_{5+,2016}\) 2016 0.289 0.287
2017 average total mortality \(\bar{Z}_{5+,2017}\) 2017 0.765 0.228
2008 average natural mortality \(\bar{M}_{5+,2008}\) 2008 0.315 0.318
2009 average natural mortality \(\bar{M}_{5+,2009}\) 2009 0.714 0.261
2010 average natural mortality \(\bar{M}_{5+,2010}\) 2010 0.451 0.282
2011 average natural mortality \(\bar{M}_{5+,2011}\) 2011 0.475 0.273
2012 average natural mortality \(\bar{M}_{5+,2012}\) 2012 0.316 0.288
2013 average natural mortality \(\bar{M}_{5+,2013}\) 2013 0.214 0.330
2014 average natural mortality \(\bar{M}_{5+,2014}\) 2014 0.313 0.309
2015 average natural mortality \(\bar{M}_{5+,2015}\) 2015 0.299 0.285
2016 average natural mortality \(\bar{M}_{5+,2016}\) 2016 0.267 0.308
2017 average natural mortality \(\bar{M}_{5+,2017}\) 2017 0.741 0.234
2008 average fishing mortality \(\bar{F}_{5+,2008}\) 2008 0.030 0.120
2009 average fishing mortality \(\bar{F}_{5+,2009}\) 2009 0.033 0.158
2010 average fishing mortality \(\bar{F}_{5+,2010}\) 2010 0.024 0.164
2011 average fishing mortality \(\bar{F}_{5+,2011}\) 2011 0.032 0.148
2012 average fishing mortality \(\bar{F}_{5+,2012}\) 2012 0.026 0.154
2013 average fishing mortality \(\bar{F}_{5+,2013}\) 2013 0.021 0.162
2014 average fishing mortality \(\bar{F}_{5+,2014}\) 2014 0.017 0.168
2015 average fishing mortality \(\bar{F}_{5+,2015}\) 2015 0.015 0.113
2016 average fishing mortality \(\bar{F}_{5+,2016}\) 2016 0.022 0.130
2017 average fishing mortality \(\bar{F}_{5+,2017}\) 2017 0.025 0.135

Note: RV = DFO Research Vessel survey; SN = Sentinel survey; SS = Smith Sound; D = proportion of stock in Smith Sound; NB = negative binomial

Stock size

Northern cod stock size estimates with lower (L) and upper (U) 95% confidence intervals (CI)
Year Abundance (millions) Abundance (millions) L 95% CI Abundance (millions) U 95% CI Recruits (age 2; millions) Recruits (age 2; millions) L 95% CI Recruits (age 2; millions) U 95% CI Biomass (kt) Biomass (kt) L 95% CI Biomass (kt) U 95% CI Spawners (millions) Spawners (millions) L 95% CI Spawners (millions) U 95% CI SSB (kt) SSB (kt) L 95% CI SSB (kt) U 95% CI SSB/Blim n(%) SSB/Blim n(%) L 95% CI SSB/Blim n(%) U 95% CI
1983 4928 3755 6468 2106 1453 3053 1893 1551 2311 375 311 453 807 673 968 95 84 107
1984 4781 3494 6542 1620 1027 2557 1955 1536 2490 444 347 567 815 637 1043 96 83 111
1985 4024 3043 5321 853 520 1398 2017 1612 2523 510 404 644 881 699 1112 104 91 117
1986 3409 2616 4442 767 461 1276 1978 1581 2474 455 358 577 818 645 1036 96 84 109
1987 3330 2515 4409 1061 658 1710 1952 1534 2485 498 382 649 872 672 1134 103 88 120
1988 3501 2646 4634 1489 968 2289 1709 1370 2131 501 392 639 869 681 1109 102 88 118
1989 3861 2900 5142 1526 976 2385 1681 1357 2083 486 383 615 893 704 1133 105 90 123
1990 3658 2760 4850 918 535 1575 1769 1421 2203 431 337 550 834 646 1077 98 81 119
1991 3327 2535 4365 840 466 1516 1848 1480 2307 439 342 562 807 618 1053 95 76 118
1992 1886 1359 2616 408 200 833 1001 751 1332 303 221 415 380 279 518 45 34 59
1993 518 367 732 102 52 198 252 180 351 80 54 119 92 62 138 11 7 16
1994 190 128 280 66 35 125 78 55 111 28 19 42 29 20 43 3 2 5
1995 79 54 116 36 19 66 26 21 34 8 6 10 10 8 13 1 1 1
1996 106 70 159 53 29 98 38 30 47 10 8 12 16 13 20 2 1 2
1997 124 86 179 61 35 106 47 40 57 12 10 14 21 18 24 2 2 3
1998 141 99 200 69 40 118 58 49 68 16 14 19 30 26 33 3 3 4
1999 186 129 269 104 61 177 70 59 82 19 17 22 36 33 40 4 4 5
2000 243 161 367 130 72 233 83 68 102 17 15 20 35 32 39 4 3 5
2001 270 173 421 148 78 281 88 70 110 13 11 16 31 27 35 4 3 4
2002 248 157 391 142 76 267 75 59 96 12 10 14 25 22 28 3 2 4
2003 207 140 306 118 70 199 64 51 80 13 10 15 24 21 28 3 2 3
2004 216 157 298 128 86 192 61 49 77 12 9 15 22 18 26 3 2 3
2005 227 172 299 72 47 110 86 70 105 16 13 20 26 22 31 3 2 4
2006 267 205 349 92 59 142 125 103 151 31 26 37 42 35 49 5 4 6
2007 325 245 431 122 76 196 167 139 202 66 55 80 85 71 101 10 8 12
2008 359 264 487 136 82 226 192 158 232 73 60 89 113 93 136 13 11 16
2009 388 278 542 164 98 273 198 160 246 59 48 73 107 87 132 13 10 16
2010 408 290 573 181 109 299 195 156 245 50 40 62 95 77 117 11 9 14
2011 452 333 614 224 145 345 201 164 245 51 42 62 96 79 117 11 9 14
2012 473 357 625 158 100 250 246 203 297 69 57 83 120 100 145 14 12 17
2013 614 464 812 259 166 404 327 272 392 105 88 126 176 147 211 21 18 24
2014 807 593 1098 335 204 551 434 361 522 141 118 169 252 211 301 30 25 35
2015 880 641 1207 279 159 490 539 447 650 150 126 180 307 257 367 36 30 43
2016 828 606 1131 205 108 389 626 513 765 180 148 219 378 312 457 44 37 53
2017 795 559 1131 262 126 543 639 507 805 212 166 271 441 350 556 52 42 65
2018 688 407 1165 262 92 743 467 343 635 152 108 216 315 224 445 37 27 51

Rates

Northern cod stock mortality rate estimates with lower (L) and upper (U) 95% confidence intervals (CI)
Year Average Z (ages 5+) Average Z (ages 5+) L 95% CI Average Z (ages 5+) U 95% CI Average M (ages 5+) Average M (ages 5+) L 95% CI Average M (ages 5+) U 95% CI Average F (ages 5+) Average F (ages 5+) L 95% CI Average F (ages 5+) U 95% CI
1983 0.592 0.519 0.676 0.391 0.389 0.392 0.202 0.137 0.297
1984 0.548 0.403 0.745 0.370 0.229 0.598 0.178 0.140 0.227
1985 0.579 0.433 0.774 0.354 0.216 0.578 0.226 0.179 0.284
1986 0.532 0.397 0.713 0.309 0.190 0.504 0.222 0.168 0.294
1987 0.653 0.476 0.896 0.447 0.276 0.726 0.206 0.162 0.261
1988 0.590 0.448 0.776 0.366 0.231 0.579 0.224 0.177 0.283
1989 0.545 0.410 0.724 0.308 0.188 0.506 0.237 0.181 0.310
1990 0.513 0.370 0.712 0.328 0.198 0.544 0.185 0.145 0.236
1991 1.401 1.131 1.737 1.174 0.913 1.509 0.228 0.168 0.308
1992 2.557 2.148 3.045 2.338 1.926 2.837 0.219 0.165 0.292
1993 2.802 2.312 3.397 2.640 2.139 3.257 0.163 0.116 0.229
1994 2.421 1.973 2.971 2.335 1.878 2.904 0.086 0.054 0.138
1995 0.376 0.232 0.610 0.335 0.192 0.582 0.042 0.033 0.053
1996 0.436 0.292 0.651 0.354 0.212 0.589 0.083 0.069 0.099
1997 0.414 0.286 0.600 0.368 0.241 0.561 0.046 0.040 0.053
1998 0.496 0.369 0.666 0.375 0.251 0.562 0.121 0.105 0.139
1999 0.654 0.487 0.879 0.442 0.281 0.696 0.212 0.186 0.241
2000 0.873 0.671 1.136 0.736 0.537 1.009 0.136 0.118 0.158
2001 1.114 0.872 1.424 0.950 0.707 1.276 0.165 0.137 0.198
2002 0.928 0.701 1.230 0.782 0.553 1.105 0.146 0.124 0.173
2003 0.917 0.627 1.340 0.857 0.568 1.292 0.060 0.048 0.074
2004 0.458 0.289 0.725 0.422 0.255 0.698 0.036 0.026 0.049
2005 0.362 0.220 0.595 0.328 0.189 0.569 0.034 0.028 0.043
2006 0.382 0.254 0.575 0.343 0.218 0.540 0.039 0.030 0.051
2007 0.504 0.338 0.751 0.476 0.312 0.725 0.028 0.021 0.037
2008 0.632 0.440 0.907 0.604 0.414 0.882 0.027 0.023 0.033
2009 0.675 0.491 0.929 0.647 0.464 0.903 0.028 0.022 0.036
2010 0.648 0.433 0.970 0.624 0.409 0.951 0.025 0.019 0.033
2011 0.413 0.270 0.633 0.386 0.244 0.611 0.027 0.022 0.034
2012 0.295 0.189 0.460 0.273 0.169 0.442 0.022 0.017 0.028
2013 0.275 0.177 0.427 0.258 0.161 0.412 0.017 0.014 0.022
2014 0.300 0.194 0.463 0.287 0.182 0.452 0.013 0.010 0.016
2015 0.314 0.200 0.493 0.301 0.189 0.482 0.013 0.011 0.016
2016 0.411 0.267 0.635 0.389 0.247 0.615 0.022 0.017 0.028
2017 0.765 0.490 1.196 0.741 0.468 1.171 0.025 0.019 0.032

Abundance-at-age

Abundance-at-age estimates (millions).
2 3 4 5 6 7 8 9 10 11 12 13 14
1983 2106.00 1155.61 741.94 495.88 145.66 91.58 98.01 56.13 28.00 5.95 1.78 0.88 0.65
1984 1620.10 1369.97 788.07 491.42 285.45 81.50 46.32 51.92 27.83 14.00 3.00 1.00 0.53
1985 852.85 1091.84 958.89 538.97 303.46 164.92 41.45 23.15 24.91 14.27 7.03 1.62 0.58
1986 767.24 568.63 772.02 669.98 330.67 170.22 77.45 19.54 10.89 11.64 6.53 3.33 0.84
1987 1060.52 525.56 413.99 561.72 430.68 187.98 86.26 37.61 9.94 5.14 5.47 3.28 1.80
1988 1488.63 687.79 349.18 277.53 339.69 215.67 80.79 36.41 15.49 4.08 2.24 2.41 1.41
1989 1526.02 1050.65 494.26 246.00 182.62 189.05 103.88 38.81 17.56 8.01 2.18 1.20 1.21
1990 917.62 1127.82 792.47 359.31 166.47 110.44 95.97 52.96 20.23 9.17 4.20 1.15 0.60
1991 840.39 631.48 803.84 556.46 239.06 104.70 60.66 47.99 24.86 10.02 4.59 2.10 0.56
1992 408.31 460.56 314.03 409.24 202.53 65.68 13.92 4.68 3.52 1.89 0.74 0.34 0.12
1993 101.95 145.57 136.55 73.92 44.84 13.48 1.35 0.40 0.15 0.13 0.06 0.03 0.01
1994 66.21 41.14 42.06 31.58 5.96 2.24 0.32 0.09 0.03 0.01 0.01 0.01 0.00
1995 35.71 21.99 9.15 8.83 2.74 0.54 0.22 0.07 0.02 0.01 0.00 0.00 0.00
1996 53.25 22.63 14.84 6.42 6.03 1.91 0.37 0.16 0.05 0.02 0.01 0.00 0.00
1997 60.60 30.56 13.20 9.81 4.07 3.97 1.22 0.25 0.11 0.03 0.01 0.00 0.00
1998 69.02 34.03 17.25 7.89 6.24 2.73 2.73 0.88 0.18 0.08 0.03 0.01 0.00
1999 103.75 39.54 19.90 9.98 4.35 3.89 1.74 1.89 0.62 0.13 0.06 0.02 0.00
2000 129.77 64.66 25.07 11.99 5.00 2.06 1.97 1.03 1.23 0.41 0.09 0.04 0.01
2001 148.37 67.97 31.66 11.50 4.39 1.90 0.90 1.20 0.65 0.80 0.27 0.06 0.03
2002 142.23 62.05 25.96 10.17 3.15 1.34 0.69 0.49 0.69 0.38 0.47 0.17 0.04
2003 118.34 53.68 20.15 8.00 3.51 1.30 0.56 0.36 0.27 0.41 0.24 0.30 0.11
2004 128.47 53.24 21.27 7.02 2.65 1.51 0.68 0.33 0.21 0.16 0.25 0.14 0.18
2005 72.13 92.62 38.93 14.66 4.41 1.62 0.89 0.47 0.24 0.15 0.12 0.18 0.11
2006 91.78 54.88 74.07 30.77 10.48 2.89 1.00 0.63 0.34 0.17 0.11 0.09 0.14
2007 121.97 69.48 43.37 58.07 22.30 6.50 1.58 0.61 0.40 0.22 0.11 0.08 0.06
2008 136.04 86.83 51.05 30.44 36.36 13.01 3.32 0.88 0.35 0.23 0.13 0.07 0.05
2009 164.07 89.34 58.31 31.49 16.44 19.02 6.88 1.83 0.48 0.19 0.13 0.07 0.04
2010 180.80 100.60 55.31 32.17 16.05 8.41 9.79 3.40 0.89 0.24 0.09 0.06 0.04
2011 224.02 103.85 59.13 28.01 15.10 9.02 4.79 5.71 1.98 0.52 0.14 0.06 0.04
2012 158.19 155.52 75.03 40.87 18.27 10.19 5.96 3.18 3.80 1.32 0.35 0.09 0.04
2013 258.98 113.85 120.25 58.17 30.93 13.79 7.27 4.26 2.28 2.75 0.96 0.26 0.07
2014 335.32 194.07 89.88 96.06 45.55 23.84 9.91 5.08 2.96 1.60 1.93 0.68 0.18
2015 278.97 243.39 148.60 69.80 73.51 34.21 16.68 6.62 3.38 1.98 1.07 1.29 0.45
2016 204.86 187.47 174.03 109.45 51.04 54.54 24.48 11.99 4.73 2.42 1.41 0.76 0.92
2017 261.88 121.28 121.63 117.15 73.59 34.35 35.23 15.90 7.78 3.07 1.57 0.92 0.49
2018 261.88 147.94 70.81 71.13 62.91 36.88 13.84 12.55 5.67 2.75 1.09 0.57 0.33

Mature abundance-at-age

Mature abundance-at-age estimates (millions).
2 3 4 5 6 7 8 9 10 11 12 13 14
1983 0.00 5.66 13.80 29.16 57.97 79.58 96.01 55.77 28.00 5.95 1.77 0.88 0.65
1984 0.00 0.55 18.99 69.63 137.16 73.80 45.37 51.75 27.80 14.00 3.00 1.00 0.53
1985 0.09 0.22 4.32 60.04 178.98 153.70 41.15 23.08 24.89 14.27 7.03 1.62 0.58
1986 0.08 0.80 2.08 35.71 128.47 157.64 77.07 19.53 10.89 11.64 6.53 3.33 0.84
1987 0.32 0.68 5.75 22.19 177.18 143.45 85.47 37.60 9.94 5.14 5.47 3.28 1.80
1988 0.30 1.51 4.43 33.94 129.08 193.37 76.13 36.37 15.49 4.08 2.24 2.41 1.41
1989 0.15 2.00 7.41 28.31 105.89 170.43 102.93 38.34 17.56 8.01 2.18 1.20 1.21
1990 0.00 1.13 13.31 35.07 94.74 102.91 95.27 52.93 20.18 9.17 4.20 1.15 0.60
1991 0.08 0.32 14.39 72.45 103.71 97.43 60.22 47.96 24.85 10.01 4.59 2.10 0.56
1992 0.41 0.64 4.11 102.31 114.91 55.46 13.82 4.68 3.52 1.89 0.74 0.34 0.12
1993 0.84 1.25 4.98 20.37 38.53 12.40 1.32 0.40 0.15 0.13 0.06 0.03 0.01
1994 0.01 1.20 2.99 16.12 5.46 2.22 0.32 0.09 0.03 0.01 0.01 0.01 0.00
1995 0.00 0.06 0.90 3.57 2.64 0.54 0.22 0.07 0.02 0.01 0.00 0.00 0.00
1996 0.04 0.05 0.50 1.81 5.17 1.90 0.37 0.16 0.05 0.02 0.01 0.00 0.00
1997 0.48 0.24 0.39 2.89 2.39 3.90 1.22 0.25 0.11 0.03 0.01 0.00 0.00
1998 0.20 1.03 1.32 2.45 5.20 2.29 2.72 0.88 0.18 0.08 0.03 0.01 0.00
1999 0.03 0.56 2.17 4.63 3.79 3.82 1.65 1.89 0.62 0.13 0.06 0.02 0.00
2000 0.01 0.23 1.68 3.89 4.51 2.04 1.97 1.02 1.23 0.41 0.09 0.04 0.01
2001 0.18 0.10 1.25 3.02 2.87 1.88 0.90 1.20 0.64 0.80 0.27 0.06 0.03
2002 0.77 0.63 0.73 3.30 2.02 1.18 0.69 0.49 0.69 0.38 0.47 0.17 0.04
2003 0.12 1.37 1.62 3.04 2.98 1.17 0.54 0.36 0.27 0.41 0.24 0.30 0.11
2004 0.08 0.40 2.39 2.99 2.46 1.49 0.67 0.33 0.21 0.16 0.25 0.14 0.18
2005 0.19 0.69 2.18 5.57 3.81 1.62 0.89 0.47 0.24 0.15 0.12 0.18 0.11
2006 0.41 1.02 6.57 9.70 7.84 2.83 1.00 0.63 0.34 0.17 0.11 0.09 0.14
2007 0.10 1.59 5.13 32.50 17.44 6.07 1.58 0.61 0.40 0.22 0.11 0.08 0.06
2008 0.38 0.53 5.56 14.84 34.29 12.56 3.28 0.88 0.35 0.23 0.13 0.07 0.05
2009 0.30 1.35 2.64 12.25 14.31 18.93 6.85 1.82 0.48 0.19 0.13 0.07 0.04
2010 0.49 1.31 4.28 8.62 12.33 8.23 9.78 3.39 0.89 0.24 0.09 0.06 0.04
2011 2.02 1.80 5.10 8.79 11.16 8.53 4.78 5.71 1.98 0.52 0.14 0.06 0.04
2012 0.08 7.04 7.68 16.52 13.05 9.74 5.89 3.18 3.80 1.32 0.35 0.09 0.04
2013 0.16 0.41 23.91 24.69 25.66 12.85 7.23 4.25 2.28 2.75 0.96 0.26 0.07
2014 0.34 1.03 2.43 54.25 37.67 23.18 9.78 5.08 2.96 1.60 1.93 0.68 0.18
2015 0.06 2.19 7.09 12.32 64.07 33.14 16.61 6.60 3.38 1.98 1.07 1.29 0.45
2016 0.12 0.51 13.35 35.09 31.80 53.05 24.36 11.98 4.73 2.42 1.41 0.76 0.92
2017 0.16 0.69 3.87 50.60 60.08 31.85 35.04 15.89 7.78 3.06 1.57 0.92 0.49
2018 0.16 0.84 3.69 20.08 55.01 36.02 13.70 12.53 5.67 2.75 1.09 0.57 0.33

Biomass-at-age

Biomass-at-age estimates (kt).
2 3 4 5 6 7 8 9 10 11 12 13 14
1983 139.61 220.81 290.33 337.00 163.00 159.70 232.80 179.27 111.22 30.29 13.25 9.01 7.13
1984 109.56 256.90 315.63 338.99 306.27 133.95 112.64 164.25 114.21 69.25 18.53 8.91 6.31
1985 59.31 209.47 376.55 380.50 329.73 258.09 94.28 74.90 101.06 72.95 42.17 11.93 5.97
1986 52.66 112.97 310.89 463.43 367.66 269.20 166.71 58.77 45.16 58.74 40.50 23.74 7.24
1987 72.22 103.11 173.70 399.24 468.91 304.12 187.25 106.44 38.10 26.48 33.49 24.16 14.96
1988 99.46 133.95 144.80 206.64 380.68 341.51 179.34 103.70 55.59 19.36 13.99 17.48 12.15
1989 102.61 200.95 203.59 181.20 215.43 308.61 225.64 112.99 63.32 35.42 12.48 8.87 10.20
1990 64.35 219.27 320.99 263.07 194.46 190.57 215.17 150.85 74.52 40.64 22.33 7.78 5.14
1991 62.88 130.21 334.09 401.17 277.76 179.07 144.32 141.24 89.58 45.37 24.45 13.16 4.41
1992 31.04 103.70 140.52 305.36 232.03 111.81 32.86 14.67 13.12 8.38 4.00 2.13 0.91
1993 7.63 33.31 68.05 60.17 53.59 22.66 3.17 1.24 0.59 0.57 0.34 0.17 0.07
1994 5.06 9.10 21.31 29.12 7.85 3.96 0.74 0.27 0.13 0.07 0.06 0.04 0.02
1995 2.75 4.93 4.41 8.27 4.15 1.07 0.53 0.20 0.08 0.04 0.02 0.02 0.01
1996 4.16 5.06 7.20 5.65 9.27 4.36 1.01 0.51 0.19 0.07 0.04 0.02 0.01
1997 4.98 6.85 6.31 8.62 5.81 9.22 3.94 0.92 0.45 0.16 0.06 0.03 0.01
1998 5.86 8.07 8.19 6.76 8.85 5.82 8.96 3.85 0.87 0.41 0.15 0.05 0.02
1999 9.04 9.72 10.02 8.41 5.96 8.19 5.19 8.36 3.48 0.75 0.35 0.12 0.04
2000 11.52 16.35 13.15 10.77 6.68 4.15 5.81 4.12 6.99 2.91 0.62 0.30 0.10
2001 13.06 17.52 17.10 10.77 6.26 3.71 2.52 4.70 3.32 5.68 2.34 0.50 0.24
2002 12.50 15.63 14.28 9.82 4.70 2.79 1.86 1.81 3.47 2.46 4.06 1.68 0.36
2003 10.76 13.38 10.69 7.87 5.41 2.85 1.60 1.28 1.29 2.58 1.84 3.09 1.28
2004 11.95 13.70 11.07 6.57 4.14 3.41 2.06 1.26 0.96 0.96 1.85 1.32 2.18
2005 6.73 24.38 20.86 13.36 6.50 3.72 2.79 1.87 1.14 0.85 0.84 1.60 1.13
2006 8.53 14.46 40.57 28.80 14.93 6.19 3.18 2.58 1.73 1.03 0.76 0.74 1.40
2007 11.27 18.23 23.74 55.51 32.54 13.36 4.64 2.56 2.08 1.36 0.81 0.59 0.57
2008 12.86 22.65 27.82 29.04 54.13 27.33 9.30 3.38 1.86 1.47 0.96 0.57 0.41
2009 15.80 23.82 31.58 29.91 24.40 40.73 19.63 6.66 2.33 1.25 0.98 0.64 0.37
2010 17.38 27.31 30.59 30.35 23.71 17.93 28.43 12.56 4.07 1.40 0.74 0.58 0.37
2011 21.62 28.14 33.28 26.96 22.15 19.15 13.85 21.52 9.16 2.88 0.97 0.51 0.40
2012 14.81 42.28 42.11 39.99 27.32 21.47 17.14 11.91 17.91 7.46 2.31 0.78 0.41
2013 23.68 30.00 67.68 56.74 46.97 29.58 20.76 15.85 10.69 15.75 6.44 1.97 0.66
2014 29.99 49.94 49.05 93.91 68.92 51.90 28.77 18.78 13.80 9.07 13.11 5.27 1.59
2015 24.44 61.25 79.19 66.18 111.43 74.16 49.08 24.86 15.63 11.18 7.19 10.20 4.05
2016 17.86 46.21 90.72 101.37 75.06 118.41 71.71 45.62 22.19 13.57 9.43 5.97 8.35
2017 22.70 29.75 62.12 106.18 105.77 72.39 103.30 60.20 36.94 17.44 10.42 7.17 4.43
2018 22.60 36.08 35.98 63.19 88.54 75.99 39.42 47.52 26.77 15.83 7.34 4.37 2.95

Mature biomass-at-age

Mature biomass-at-age estimates (kt).
2 3 4 5 6 7 8 9 10 11 12 13 14
1983 0.00 1.08 5.40 19.82 64.87 138.76 228.05 178.12 111.20 30.29 13.23 9.00 7.13
1984 0.00 0.10 7.61 48.03 147.16 121.29 110.33 163.70 114.07 69.25 18.53 8.90 6.31
1985 0.01 0.04 1.69 42.39 194.48 240.54 93.61 74.68 101.01 72.94 42.17 11.93 5.96
1986 0.01 0.16 0.84 24.70 142.84 249.30 165.90 58.74 45.15 58.73 40.50 23.74 7.24
1987 0.02 0.13 2.41 15.77 192.91 232.07 185.55 106.41 38.10 26.48 33.49 24.16 14.96
1988 0.02 0.29 1.84 25.27 144.66 306.20 168.99 103.59 55.59 19.36 13.99 17.48 12.15
1989 0.01 0.38 3.05 20.86 124.91 278.21 223.57 111.64 63.32 35.42 12.48 8.87 10.20
1990 0.00 0.22 5.39 25.68 110.67 177.57 213.60 150.75 74.34 40.64 22.33 7.78 5.14
1991 0.01 0.07 5.98 52.23 120.49 166.64 143.26 141.17 89.57 45.35 24.45 13.16 4.41
1992 0.03 0.15 1.84 76.34 131.65 94.41 32.62 14.66 13.12 8.38 4.00 2.13 0.91
1993 0.06 0.29 2.48 16.58 46.04 20.85 3.09 1.24 0.59 0.57 0.34 0.17 0.07
1994 0.00 0.26 1.51 14.86 7.19 3.93 0.73 0.27 0.13 0.07 0.06 0.04 0.02
1995 0.00 0.01 0.43 3.35 4.01 1.07 0.53 0.20 0.08 0.04 0.02 0.02 0.01
1996 0.00 0.01 0.24 1.60 7.95 4.35 1.01 0.51 0.19 0.07 0.04 0.02 0.01
1997 0.04 0.05 0.18 2.54 3.41 9.05 3.94 0.92 0.45 0.16 0.06 0.03 0.01
1998 0.02 0.24 0.62 2.10 7.38 4.87 8.94 3.85 0.87 0.41 0.15 0.05 0.02
1999 0.00 0.14 1.09 3.90 5.19 8.06 4.93 8.36 3.48 0.75 0.35 0.12 0.04
2000 0.00 0.06 0.88 3.49 6.02 4.11 5.80 4.06 6.99 2.91 0.62 0.30 0.10
2001 0.02 0.02 0.68 2.83 4.09 3.67 2.52 4.70 3.31 5.68 2.34 0.50 0.24
2002 0.07 0.16 0.40 3.19 3.01 2.46 1.86 1.81 3.47 2.45 4.06 1.68 0.36
2003 0.01 0.34 0.86 2.99 4.59 2.56 1.55 1.28 1.29 2.58 1.84 3.09 1.28
2004 0.01 0.10 1.25 2.80 3.85 3.36 2.01 1.25 0.96 0.96 1.85 1.32 2.18
2005 0.02 0.18 1.17 5.08 5.61 3.71 2.78 1.87 1.13 0.85 0.84 1.60 1.13
2006 0.04 0.27 3.60 9.08 11.16 6.07 3.18 2.58 1.73 1.03 0.76 0.74 1.40
2007 0.01 0.42 2.81 31.06 25.44 12.49 4.63 2.56 2.08 1.36 0.81 0.59 0.57
2008 0.04 0.14 3.03 14.16 51.05 26.39 9.17 3.38 1.86 1.47 0.96 0.57 0.41
2009 0.03 0.36 1.43 11.63 21.25 40.54 19.54 6.64 2.33 1.25 0.98 0.64 0.37
2010 0.05 0.36 2.36 8.13 18.22 17.56 28.41 12.55 4.07 1.40 0.74 0.58 0.37
2011 0.19 0.49 2.87 8.46 16.37 18.11 13.81 21.52 9.16 2.88 0.97 0.51 0.40
2012 0.01 1.92 4.31 16.16 19.51 20.53 16.95 11.91 17.91 7.46 2.31 0.78 0.41
2013 0.01 0.11 13.46 24.09 38.97 27.56 20.64 15.82 10.69 15.75 6.44 1.97 0.66
2014 0.03 0.26 1.32 53.04 56.99 50.46 28.39 18.77 13.80 9.07 13.11 5.27 1.59
2015 0.00 0.55 3.78 11.68 97.12 71.84 48.89 24.80 15.63 11.18 7.19 10.20 4.05
2016 0.01 0.12 6.96 32.50 46.76 115.16 71.35 45.59 22.18 13.57 9.43 5.97 8.35
2017 0.01 0.17 1.98 45.86 86.35 67.12 102.74 60.15 36.94 17.43 10.42 7.17 4.43
2018 0.01 0.21 1.87 17.84 77.42 74.22 39.03 47.47 26.76 15.83 7.34 4.37 2.95

Z-at-age

Z-at-age estimates.
2 3 4 5 6 7 8 9 10 11 12 13 14
1983 0.430 0.383 0.412 0.552 0.581 0.682 0.635 0.702 0.693 0.686 0.572 0.508 0.458
1984 0.395 0.357 0.380 0.482 0.549 0.676 0.694 0.735 0.668 0.690 0.613 0.555 0.505
1985 0.405 0.347 0.359 0.489 0.578 0.756 0.752 0.754 0.761 0.783 0.747 0.654 0.594
1986 0.378 0.317 0.318 0.442 0.565 0.680 0.722 0.676 0.751 0.755 0.689 0.615 0.543
1987 0.433 0.409 0.400 0.503 0.692 0.845 0.863 0.887 0.890 0.830 0.821 0.841 0.782
1988 0.348 0.330 0.350 0.419 0.586 0.730 0.733 0.729 0.659 0.627 0.626 0.691 0.667
1989 0.302 0.282 0.319 0.391 0.503 0.678 0.674 0.652 0.650 0.646 0.639 0.698 0.642
1990 0.374 0.339 0.354 0.407 0.464 0.599 0.693 0.756 0.703 0.691 0.693 0.716 0.712
1991 0.601 0.699 0.675 1.011 1.292 2.017 2.561 2.613 2.575 2.610 2.601 2.823 2.885
1992 1.031 1.216 1.446 2.211 2.710 3.885 3.555 3.456 3.335 3.377 3.326 3.558 3.826
1993 0.907 1.242 1.464 2.519 2.995 3.746 2.745 2.499 2.361 2.363 2.388 2.534 2.851
1994 1.102 1.503 1.561 2.446 2.393 2.338 1.578 1.449 1.389 1.407 1.456 1.620 2.048
1995 0.456 0.393 0.354 0.382 0.362 0.393 0.330 0.307 0.287 0.307 0.373 0.544 0.996
1996 0.555 0.539 0.414 0.457 0.417 0.447 0.389 0.367 0.350 0.355 0.427 0.606 1.073
1997 0.577 0.572 0.515 0.452 0.399 0.375 0.321 0.309 0.303 0.307 0.352 0.460 0.768
1998 0.557 0.537 0.547 0.595 0.474 0.452 0.366 0.357 0.361 0.341 0.374 0.434 0.652
1999 0.473 0.456 0.507 0.691 0.748 0.677 0.522 0.434 0.401 0.380 0.340 0.332 0.423
2000 0.647 0.714 0.780 1.005 0.968 0.826 0.498 0.466 0.430 0.413 0.383 0.388 0.431
2001 0.872 0.963 1.136 1.294 1.190 1.011 0.614 0.552 0.520 0.529 0.503 0.489 0.494
2002 0.974 1.125 1.177 1.063 0.883 0.876 0.645 0.578 0.510 0.482 0.444 0.422 0.420
2003 0.799 0.926 1.055 1.106 0.845 0.650 0.513 0.528 0.512 0.525 0.499 0.496 0.480
2004 0.327 0.313 0.372 0.464 0.491 0.525 0.369 0.345 0.330 0.318 0.309 0.310 0.304
2005 0.273 0.223 0.235 0.336 0.424 0.479 0.353 0.318 0.304 0.294 0.286 0.287 0.286
2006 0.278 0.235 0.243 0.322 0.478 0.602 0.493 0.454 0.447 0.424 0.409 0.415 0.418
2007 0.340 0.308 0.354 0.468 0.539 0.671 0.584 0.558 0.554 0.534 0.519 0.518 0.521
2008 0.421 0.398 0.483 0.616 0.648 0.637 0.597 0.602 0.604 0.584 0.563 0.561 0.561
2009 0.489 0.479 0.595 0.674 0.671 0.665 0.707 0.719 0.716 0.705 0.684 0.684 0.674
2010 0.554 0.531 0.680 0.757 0.576 0.562 0.538 0.540 0.543 0.537 0.522 0.523 0.513
2011 0.365 0.325 0.369 0.427 0.393 0.415 0.409 0.407 0.402 0.395 0.377 0.377 0.370
2012 0.329 0.257 0.254 0.279 0.281 0.337 0.337 0.331 0.324 0.320 0.311 0.308 0.299
2013 0.289 0.236 0.225 0.245 0.260 0.330 0.359 0.362 0.358 0.355 0.351 0.352 0.335
2014 0.320 0.267 0.253 0.268 0.286 0.357 0.403 0.407 0.405 0.404 0.403 0.400 0.384
2015 0.398 0.335 0.306 0.313 0.298 0.335 0.330 0.336 0.336 0.341 0.337 0.335 0.317
2016 0.524 0.433 0.396 0.397 0.396 0.437 0.431 0.432 0.434 0.435 0.425 0.432 0.408
2017 0.571 0.538 0.537 0.622 0.691 0.909 1.032 1.031 1.040 1.035 1.020 1.022 1.002

M-at-age

M-at-age estimates.
2 3 4 5 6 7 8+
1983 0.430 0.380 0.380 0.400 0.380 0.420 0.360
1984 0.395 0.354 0.349 0.362 0.371 0.400 0.380
1985 0.405 0.344 0.324 0.341 0.346 0.405 0.358
1986 0.378 0.313 0.279 0.296 0.316 0.357 0.303
1987 0.433 0.403 0.361 0.398 0.479 0.538 0.428
1988 0.348 0.324 0.302 0.309 0.361 0.453 0.357
1989 0.302 0.275 0.267 0.272 0.284 0.370 0.316
1990 0.374 0.331 0.295 0.277 0.284 0.388 0.430
1991 0.601 0.690 0.612 0.859 1.048 1.719 2.156
1992 1.031 1.209 1.394 2.068 2.434 3.480 2.962
1993 0.907 1.236 1.412 2.398 2.808 3.463 2.254
1994 1.102 1.498 1.534 2.375 2.266 2.169 1.317
1995 0.456 0.390 0.341 0.351 0.300 0.306 0.228
1996 0.555 0.536 0.399 0.402 0.321 0.323 0.260
1997 0.577 0.569 0.505 0.423 0.348 0.302 0.248
1998 0.557 0.534 0.530 0.526 0.344 0.268 0.196
1999 0.473 0.453 0.485 0.596 0.478 0.302 0.186
2000 0.647 0.712 0.758 0.918 0.799 0.584 0.281
2001 0.872 0.960 1.108 1.187 0.980 0.683 0.346
2002 0.974 1.123 1.160 0.980 0.675 0.519 0.329
2003 0.799 0.925 1.051 1.090 0.775 0.518 0.356
2004 0.327 0.312 0.370 0.453 0.442 0.432 0.277
2005 0.273 0.223 0.233 0.322 0.357 0.381 0.264
2006 0.278 0.235 0.241 0.306 0.406 0.489 0.366
2007 0.340 0.308 0.352 0.455 0.493 0.596 0.485
2008 0.421 0.398 0.481 0.606 0.619 0.590 0.525
2009 0.489 0.479 0.592 0.666 0.647 0.622 0.639
2010 0.554 0.531 0.678 0.749 0.555 0.522 0.480
2011 0.365 0.325 0.368 0.420 0.370 0.365 0.347
2012 0.329 0.257 0.253 0.273 0.262 0.292 0.277
2013 0.289 0.236 0.223 0.239 0.243 0.296 0.315
2014 0.320 0.267 0.252 0.264 0.273 0.330 0.369
2015 0.398 0.335 0.305 0.311 0.288 0.313 0.300
2016 0.524 0.433 0.395 0.393 0.379 0.401 0.378
2017 0.571 0.538 0.536 0.619 0.674 0.874 0.965

F-at-age

F-at-age estimates.
2 3 4 5 6 7 8 9 10 11 12 13 14
1983 0 0.003 0.032 0.152 0.201 0.262 0.275 0.342 0.333 0.326 0.212 0.148 0.098
1984 0 0.003 0.031 0.120 0.178 0.276 0.314 0.355 0.288 0.310 0.233 0.175 0.125
1985 0 0.003 0.035 0.147 0.232 0.351 0.393 0.396 0.403 0.424 0.388 0.295 0.236
1986 0 0.004 0.039 0.146 0.249 0.323 0.419 0.373 0.448 0.452 0.386 0.312 0.240
1987 0 0.006 0.039 0.105 0.213 0.306 0.435 0.460 0.462 0.402 0.394 0.413 0.354
1988 0 0.007 0.049 0.109 0.225 0.278 0.377 0.372 0.303 0.270 0.269 0.334 0.310
1989 0 0.007 0.052 0.118 0.219 0.308 0.357 0.335 0.334 0.329 0.323 0.381 0.325
1990 0 0.008 0.058 0.130 0.180 0.211 0.263 0.327 0.273 0.261 0.263 0.287 0.282
1991 0 0.009 0.063 0.151 0.244 0.299 0.406 0.457 0.420 0.454 0.445 0.667 0.729
1992 0 0.007 0.052 0.143 0.275 0.406 0.593 0.494 0.373 0.415 0.363 0.596 0.864
1993 0 0.006 0.053 0.120 0.186 0.283 0.491 0.245 0.107 0.109 0.134 0.280 0.598
1994 0 0.005 0.028 0.071 0.127 0.169 0.261 0.132 0.073 0.090 0.139 0.304 0.731
1995 0 0.003 0.013 0.031 0.061 0.087 0.103 0.079 0.059 0.080 0.145 0.316 0.768
1996 0 0.003 0.016 0.054 0.096 0.125 0.129 0.107 0.090 0.095 0.167 0.346 0.813
1997 0 0.003 0.010 0.029 0.052 0.074 0.073 0.061 0.055 0.059 0.103 0.212 0.520
1998 0 0.003 0.017 0.069 0.130 0.184 0.171 0.161 0.166 0.145 0.178 0.238 0.456
1999 0 0.003 0.021 0.095 0.269 0.375 0.336 0.249 0.215 0.194 0.154 0.146 0.238
2000 0 0.002 0.022 0.086 0.169 0.241 0.217 0.185 0.149 0.132 0.102 0.107 0.150
2001 0 0.002 0.028 0.107 0.210 0.327 0.267 0.206 0.174 0.182 0.157 0.143 0.148
2002 0 0.002 0.017 0.082 0.209 0.357 0.316 0.249 0.181 0.153 0.115 0.093 0.091
2003 0 0.001 0.004 0.016 0.071 0.132 0.157 0.172 0.156 0.169 0.143 0.140 0.124
2004 0 0.001 0.002 0.012 0.048 0.093 0.092 0.068 0.053 0.042 0.032 0.033 0.028
2005 0 0.001 0.002 0.014 0.066 0.098 0.089 0.054 0.041 0.030 0.023 0.024 0.022
2006 0 0.000 0.003 0.016 0.072 0.113 0.127 0.088 0.082 0.058 0.043 0.050 0.052
2007 0 0.000 0.002 0.013 0.045 0.074 0.099 0.074 0.069 0.049 0.034 0.033 0.036
2008 0 0.000 0.002 0.010 0.029 0.047 0.073 0.078 0.080 0.060 0.038 0.036 0.036
2009 0 0.000 0.003 0.009 0.023 0.043 0.068 0.081 0.077 0.066 0.045 0.045 0.036
2010 0 0.000 0.002 0.007 0.021 0.040 0.058 0.060 0.063 0.057 0.041 0.042 0.033
2011 0 0.000 0.002 0.007 0.023 0.050 0.062 0.060 0.054 0.047 0.030 0.030 0.023
2012 0 0.000 0.001 0.006 0.019 0.045 0.060 0.054 0.047 0.043 0.034 0.031 0.022
2013 0 0.000 0.001 0.006 0.017 0.035 0.044 0.047 0.044 0.040 0.036 0.037 0.021
2014 0 0.000 0.001 0.003 0.013 0.027 0.035 0.038 0.036 0.035 0.034 0.031 0.015
2015 0 0.000 0.000 0.002 0.011 0.022 0.030 0.036 0.036 0.041 0.037 0.035 0.017
2016 0 0.000 0.000 0.004 0.017 0.036 0.054 0.055 0.057 0.057 0.048 0.054 0.030
2017 0 0.000 0.000 0.003 0.016 0.035 0.067 0.066 0.075 0.070 0.055 0.057 0.037